Vendor
Linux kernel
25 known vulnerabilities.
Products
25 results · Feed
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Medium 6.7
Arbitrary Memory read in BPF Linux Kernel
There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily re…
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Medium 6.9
Linux Kernel LoadPin bypass via dm-verity table reload
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the …
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High 7.5
Use-after-free in io_uring ad work_flags in Linux Kernel
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts whi…
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Medium 6.6CVE-2021-22600 Exploited
Double Free in net/packet/af_packet.c leading to priviledge escalation
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1…
KEV Apr 11, 2022 -
High 8.7
Improper memory handling in Linux KVM
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to …
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High 7.8
Linux kernel llcp_sock_bind/connect use-after-free
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
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Medium 6.7
Linux Kernel sctp_destroy_sock race condition
A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock …
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Medium 5.1
Unprivileged overlay + shiftfs read access
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unp…
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Medium 6.7
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from un…
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Medium 5.5
A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and th…
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Medium 5.5
A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect br…
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Medium 5.5
A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Predict…
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Medium 5.5
A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling al…
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Medium 5.5
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause a…
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Medium 4.4
A memory disclosure flaw was found in the Linux kernel's ethernet drivers, in the way it read data from the EEPROM of t…
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Medium 5.5
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the wa…
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High 7.5
A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE t…
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Low 3.3
A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a loca…
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High 7.0
The fix for CVE-2019-11599, affecting the Linux kernel before 5.0.10 was not complete. A local user could use this flaw…
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Medium 6.5
Linux kernel KVM Power8 conflicting use of HSTATE_HOST_R1
KVM in the Linux kernel on Power8 processors has a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability run code in kernel space o…
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High 7.8
Linux kernel bpf verifier vulnerability
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable …
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Unscored —
OverlayFS in the Linux kernel before 3.0.0-16.28, as used in Ubuntu 10.0.4 LTS and 11.10, is missing inode security che…
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High 7.2
A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that …
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Unscored —
The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel …
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Unscored —
Memory leak in the irda_bind function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linu…