Summary
Ein Angreifer kann mehrere Schwachstellen in Grub ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben oder nicht spezifizierte Auswirkungen zu verursachen.
Product
Grand Unified Bootloader (Grub) ist ein freies Bootloader-Programm des GNU Projekts.
Vulnerabilities 21
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High 7.8
Grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)
A flaw was found in the HFS filesystem. When reading an HFS volume's name at grub_fs_mount(), the HFS filesystem driver performs a strcpy() using the user-provided volume name as input without properly validating the volume name's length. This issue may read …
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High 7.8
Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data
A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A malicio…
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High 7.8
Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution
When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smal…
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High 7.8
Grub2: fs/hfs: integer overflow may lead to heap based out-of-bounds write
When reading data from a hfs filesystem, grub's hfs filesystem module uses user-controlled parameters from the filesystem metadata to calculate the internal buffers size, however it misses to properly check for integer overflows. A maliciouly crafted filesyst…
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High 7.6
Grub2: net: out-of-bounds write in grub_net_search_config_file()
A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to …
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Medium 6.7
Grub2: reader/jpeg: heap oob write during jpeg parsing
A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boo…
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Medium 6.7
Grub2: grub-core/gettext: integer overflow leads to heap oob write and read.
When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw a…
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Medium 6.7
Grub2: grub-core/gettext: integer overflow leads to heap oob write.
A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensiti…
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Medium 6.7
Grub2: fs/tar: integer overflow causes heap oob write
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a cr…
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Medium 6.7
Grub2: fs/ufs: oob write in the heap
A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allo…
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Medium 6.4
Grub2: command/gpg: use-after-free due to hooks not being removed on module unload
A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to …
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Medium 6.4
Grub2: ufs: integer overflow may lead to heap based out-of-bounds write when handling symlinks
A flaw was found in grub2. When performing a symlink lookup, the grub's UFS module checks the inode's data size to allocate the internal buffer to read the file content, however, it fails to check if the symlink data size has overflown. When this occurs, grub…
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Medium 6.4
Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data
A flaw was found in grub2. When performing a symlink lookup from a reiserfs filesystem, grub's reiserfs fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer ove…
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Medium 6.4
Grub2: jfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data
A flaw was found in grub2. When reading data from a jfs filesystem, grub's jfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A malicio…
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Medium 6.4
Grub2: romfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading dat
A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer o…
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Medium 6.1CVE-2025-0690 Public exploit
Grub2: read: integer overflow may lead to out-of-bounds write
The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it…
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Medium 6.0
Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow du…
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Medium 5.2
Grub2: commands/extcmd: missing check for failed allocation
A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub's argument list. However, it fails to check in case the memory allocation fails. Once the allocation fails, a NULL point will be …
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Medium 4.4
Grub2: fs/hfs+: refcount can be decremented twice
A flaw was found in grub2. When failing to mount an HFS+ grub, the hfsplus filesystem driver doesn't properly set an ERRNO value. This issue may lead to a NULL pointer access.
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Medium 4.4
Grub2: commands/dump: the dump command is not in lockdown when secure boot is enabled
A flaw was found in grub2. Grub's dump command is not blocked when grub is in lockdown mode, which allows the user to read any memory information, and an attacker may leverage this in order to extract signatures, salts, and other sensitive information from th…
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Medium 4.1
Grub2: fs/bfs: integer overflow in the bfs parser.
A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash.
Revision history
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#37
Neue Updates von Debian aufgenommen
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#36
Neue Updates von Rocky Enterprise Software Foundation aufgenommen
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#35
Neue Updates von Oracle Linux aufgenommen
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#34
Neue Updates von BROCADE aufgenommen
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#33
Neue Updates von Oracle Linux aufgenommen
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#32
Neue Updates von Red Hat aufgenommen
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#31
Neue Updates von SUSE aufgenommen
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#30
Neue Updates von Rocky Enterprise Software Foundation aufgenommen
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#29
Neue Updates von Dell aufgenommen
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#28
Neue Updates von Oracle Linux aufgenommen
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#27
Neue Updates von Red Hat aufgenommen
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#26
Neue Updates von SUSE aufgenommen
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#25
Neue Updates von Dell aufgenommen
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#24
Neue Updates von SUSE aufgenommen
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#23
Neue Updates von Dell aufgenommen
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#22
Neue Updates von Red Hat aufgenommen
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#21
Referenz(en) aufgenommen: EUVD-2025-4377
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#20
Neue Updates von NetApp aufgenommen
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#19
Neue Updates von Red Hat aufgenommen
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#18
Neue Updates von Red Hat aufgenommen
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#17
Neue Updates von Amazon aufgenommen
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#16
Neue Updates von IBM aufgenommen
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#15
Neue Updates von Red Hat aufgenommen
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#14
Neue Updates von Oracle Linux aufgenommen
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#13
Neue Updates von Red Hat aufgenommen
References
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GRUB CVE disclosures vom 2025-02-18
https://seclists.org/oss-sec/2025/q1/146
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SUSE Security Update SUSE-SU-2025:0587-1 vom 2025-02-19
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/FC5UMQRPYZRSXBO46R2XWYWPO5LLBJJT/
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SUSE Security Update SUSE-SU-2025:0588-1 vom 2025-02-19
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/XX3LKTTDBFMS35QPFYN7JCSSRUAIKNBQ/
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SUSE Security Update SUSE-SU-2025:0586-1 vom 2025-02-19
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/DXNQOLWI2VTGHQQFXJ4MVKB7VZAOWIIK/
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SUSE Security Update SUSE-SU-2025:0607-1 vom 2025-02-21
https://lists.suse.com/pipermail/sle-security-updates/2025-February/020379.html
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openSUSE Security Update OPENSUSE-SU-2025:14822-1 vom 2025-02-20
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/ASOEHBP5LS2I6OPV4KMUZIY2AF7IGH4E/
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SUSE Security Update SUSE-SU-2025:0629-1 vom 2025-02-21
https://lists.suse.com/pipermail/sle-security-updates/2025-February/020407.html
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Red Hat Security Advisory RHSA-2025:2521 vom 2025-03-10
https://access.redhat.com/errata/RHSA-2025:2521
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Red Hat Security Advisory RHSA-2025:2653 vom 2025-03-11
https://access.redhat.com/errata/RHSA-2025:2653
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Red Hat Security Advisory RHSA-2025:2655 vom 2025-03-11
https://access.redhat.com/errata/RHSA-2025:2655
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Red Hat Security Advisory RHSA-2025:2675 vom 2025-03-12
https://access.redhat.com/errata/RHSA-2025:2675
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Red Hat Security Advisory RHSA-2025:2784 vom 2025-03-13
https://access.redhat.com/errata/RHSA-2025:2784
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Red Hat Security Advisory RHSA-2025:2799 vom 2025-03-13
https://access.redhat.com/errata/RHSA-2025:2799
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Red Hat Security Advisory RHSA-2025:2869 vom 2025-03-17
https://access.redhat.com/errata/RHSA-2025:2869
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Red Hat Security Advisory RHSA-2025:2867 vom 2025-03-17
https://access.redhat.com/errata/RHSA-2025:2867
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Oracle Linux Security Advisory ELSA-2025-2867 vom 2025-03-17
https://linux.oracle.com/errata/ELSA-2025-2867.html
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Red Hat Security Advisory RHSA-2025:3367 vom 2025-03-27
https://access.redhat.com/errata/RHSA-2025:3367
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Red Hat Security Advisory RHSA-2025:3396 vom 2025-03-31
https://access.redhat.com/errata/RHSA-2025:3396
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Red Hat Security Advisory RHSA-2025:3301 vom 2025-04-03
https://access.redhat.com/errata/RHSA-2025:3301
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Red Hat Security Advisory RHSA-2025:3297 vom 2025-04-02
https://access.redhat.com/errata/RHSA-2025:3297
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Oracle Linux Security Advisory ELSA-2025-3367 vom 2025-04-10
https://linux.oracle.com/errata/ELSA-2025-3367.html
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Red Hat Security Advisory RHSA-2025:3573 vom 2025-04-10
https://access.redhat.com/errata/RHSA-2025:3573
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Red Hat Security Advisory RHSA-2025:3577 vom 2025-04-10
https://access.redhat.com/errata/RHSA-2025:3577
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Oracle Linux Security Advisory ELSA-2025-3396 vom 2025-04-11
https://linux.oracle.com/errata/ELSA-2025-3396.html
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Red Hat Security Advisory RHSA-2025:3780 vom 2025-04-17
https://access.redhat.com/errata/RHSA-2025:3780
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IBM Security Bulletin 7231915 vom 2025-04-26
https://www.ibm.com/support/pages/node/7231915
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Amazon Linux Security Advisory ALAS-2025-2844 vom 2025-04-30
https://alas.aws.amazon.com/AL2/ALAS-2025-2844.html
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Red Hat Security Advisory RHSA-2025:4422 vom 2025-05-08
https://access.redhat.com/errata/RHSA-2025:4422
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Red Hat Security Advisory RHSA-2025:6990 vom 2025-05-13
https://access.redhat.com/errata/RHSA-2025:6990
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NetApp Security Advisory NTAP-20250516-0006 vom 2025-05-16
https://security.netapp.com/advisory/ntap-20250516-0006/
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Red Hat Security Advisory RHSA-2025:7702 vom 2025-05-21
https://access.redhat.com/errata/RHSA-2025:7702
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Dell Security Advisory DSA-2025-213 vom 2025-05-30
https://www.dell.com/support/kbdoc/de-de/000326299/dsa-2025-213-security-update-for-dell-avamar-dell-networker-virtual-edition-nve-and-dell-powerprotect-dp-series-appliance-dell-integrated-data-protection-appliance-idpa-multiple-third-party-vulnerabilities
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SUSE Security Update SUSE-SU-2025:01961-1 vom 2025-06-16
https://lists.suse.com/pipermail/sle-security-updates/2025-June/021530.html
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Dell Security Advisory DSA-2025-262 vom 2025-08-01
https://www.dell.com/support/kbdoc/000337955
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SUSE Security Update SUSE-SU-2025:20511-1 vom 2025-08-04
https://lists.suse.com/pipermail/sle-security-updates/2025-August/022039.html
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Red Hat Security Advisory RHSA-2025:16154 vom 2025-09-18
https://access.redhat.com/errata/RHSA-2025:16154
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Oracle Linux Security Advisory ELSA-2025-16154 vom 2025-09-18
https://linux.oracle.com/errata/ELSA-2025-16154.html
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Dell Security Update vom 2025-10-02
https://www.dell.com/support/kbdoc/000376224
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Rocky Linux Security Advisory RLSA-2025:16154 vom 2025-10-03
https://errata.build.resf.org/RLSA-2025:16154
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Rocky Linux Security Advisory RLSA-2025:6990 vom 2025-10-04
https://errata.build.resf.org/RLSA-2025:6990
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SUSE Security Update SUSE-SU-2025:20863-1 vom 2025-10-24
https://lists.suse.com/pipermail/sle-security-updates/2025-October/023017.html
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Red Hat Security Advisory RHSA-2025:20532 vom 2025-11-11
https://access.redhat.com/errata/RHSA-2025:20532
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Oracle Linux Security Advisory ELSA-2025-20532 vom 2025-11-25
https://linux.oracle.com/errata/ELSA-2025-20532-0.html
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Brocade Security Advisory BSA-2026-3200 vom 2026-03-03
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/37142
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Oracle Linux Security Advisory ELSA-2026-5233 vom 2026-04-07
https://linux.oracle.com/errata/ELSA-2026-5233.html
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Rocky Linux Security Advisory RLSA-2025:20532 vom 2026-05-21
https://errata.build.resf.org/RLSA-2025:20532
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Debian Security Advisory DLA-4685 vom 2026-07-15
https://lists.debian.org/debian-lts-announce/2026/07/msg00027.html