Summary
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 file system image that, when mounted, could
cause a denial of service (system crash). (CVE-2022-1184)
It was discovered that some AMD x86-64 processors with SMT enabled could
speculatively execute instructions using a return address from a sibling
thread. A local attacker could possibly use this to expose sensitive
information. (CVE-2022-27672)
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
William Zhao discovered that the Traffic Control (TC) subsystem in the
Linux kernel did not properly handle network packet retransmission in
certain situations. A local attacker could use this to cause a denial of
service (kernel deadlock). (CVE-2022-4269)
It was discovered that a race condition existed in the qdisc implementation
in the Linux kernel, leading to a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2023-0590)
It was discovered that a race condition existed in the btrfs file system
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly expose sensitive information. (CVE-2023-1611)
It was discovered that the APM X-Gene SoC hardware monitoring driver in the
Linux kernel contained a race condition, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or expose sensitive information (kernel memory).
(CVE-2023-1855)
It was discovered that the ST NCI NFC driver did not properly handle device
removal events. A physically proximate attacker could use this to cause a
denial of service (system crash). (CVE-2023-1990)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
It was discovered that the XFS file system implementation in the Linux
kernel did not properly perform metadata validation when mounting certain
images. An attacker could use this to specially craft a file system image
that, when mounted, could cause a denial of service (system crash).
(CVE-2023-2124)
It was discovered that the SLIMpro I2C device driver in the Linux kernel
did not properly validate user-supplied data in some situations, leading to
an out-of-bounds write vulnerability. A privileged attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2023-2194)
It was discovered that a race condition existed in the TLS subsystem in the
Linux kernel, leading to a use-after-free or a null pointer dereference
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-28466)
It was discovered that the DA9150 charger driver in the Linux kernel did
not properly handle device removal, leading to a user-after free
vulnerability. A physically proximate attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-30772)
It was discovered that the btrfs file system implementation in the Linux
kernel did not properly handle error conditions in some situations, leading
to a use-after-free vulnerability. A local attacker could possibly use this
to cause a denial of service (system crash). (CVE-2023-3111)
It was discovered that the Ricoh R5C592 MemoryStick card reader driver in
the Linux kernel contained a race condition during module unload, leading
to a use-after-free vulnerability. A local attacker could use this to cause
a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-3141)
It was discovered that the Qualcomm EMAC ethernet driver in the Linux
kernel did not properly handle device removal, leading to a user-after free
vulnerability. A physically proximate attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-33203)
It was discovered that the universal 32bit network packet classifier
implementation in the Linux kernel did not properly perform reference
counting in some situations, leading to a use-after-free vulnerability. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2023-3609)
It was discovered that the Quick Fair Queueing network scheduler
implementation in the Linux kernel contained an out-of-bounds write
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-3611)
It was discovered that the network packet classifier with
netfilter/firewall marks implementation in the Linux kernel did not
properly handle reference counting, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-3776)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | linux-azure | 5.4.0-1114.120 |
Vulnerabilities 21
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High 7.8
A use after free vulnerability was found in prepare_to_relocate in fs/btrfs/relocation.c in btrfs in the Linux Kernel. …
-
High 7.8CVE-2023-3609 Public exploit
Use-after-free in Linux kernel's net/sched: cls_u32 component
A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the refe…
-
High 7.8
Out-of-bounds write in Linux kernel's net/sched: sch_qfq component
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated accordin…
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High 7.8CVE-2023-3776 Public exploit
Use-after-free in Linux kernel's net/sched: cls_fw component
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the refere…
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High 7.1
A use-after-free flaw was found in r592_remove in drivers/memstick/host/r592.c in media access in the Linux Kernel. Thi…
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High 7.0
do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race con…
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Medium 6.7
An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->bl…
-
Medium 6.5
Information exposure through microarchitectural state after transient execution in certain vector execution units for s…
-
Medium 6.4
The Linux kernel before 6.2.9 has a race condition and resultant use-after-free in drivers/power/supply/da9150-charger.…
-
Medium 6.4
The Linux kernel before 6.2.9 has a race condition and resultant use-after-free in drivers/net/ethernet/qualcomm/emac/e…
-
Medium 6.3
A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allows …
-
Medium 6.3
A use-after-free flaw was found in xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux K…
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Medium 5.5
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unb…
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Medium 5.5
A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirec…
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Medium 4.7
A use-after-free flaw was found in ndlc_remove in drivers/nfc/st-nci/ndlc.c in the Linux Kernel. This flaw could allow …
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Unscored —
A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c…
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Unscored —
A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component. Th…
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Unscored —
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thre…
-
Unscored —
A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This f…
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Unscored —CVE-2023-20593 Public exploit
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access …
-
Unscored —
An out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image…
References
-
report
https://ubuntu.com/security/CVE-2020-36691
-
report
https://ubuntu.com/security/CVE-2022-0168
-
report
https://ubuntu.com/security/CVE-2022-1184
-
report
https://ubuntu.com/security/CVE-2022-4269
-
report
https://ubuntu.com/security/CVE-2022-27672
-
report
https://ubuntu.com/security/CVE-2022-40982
-
report
https://ubuntu.com/security/CVE-2023-0590
-
report
https://ubuntu.com/security/CVE-2023-1611
-
report
https://ubuntu.com/security/CVE-2023-1855
-
report
https://ubuntu.com/security/CVE-2023-1990
-
report
https://ubuntu.com/security/CVE-2023-2124
-
report
https://ubuntu.com/security/CVE-2023-2194
-
report
https://ubuntu.com/security/CVE-2023-3111
-
report
https://ubuntu.com/security/CVE-2023-3141
-
report
https://ubuntu.com/security/CVE-2023-3609
-
report
https://ubuntu.com/security/CVE-2023-3611
-
report
https://ubuntu.com/security/CVE-2023-3776
-
report
https://ubuntu.com/security/CVE-2023-20593
-
report
https://ubuntu.com/security/CVE-2023-28466
-
report
https://ubuntu.com/security/CVE-2023-30772
-
report
https://ubuntu.com/security/CVE-2023-33203