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Debian LTS Advisory DLA-3173-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Ben Hutchings
November 1, 2022 https://wiki.debian.org/LTS
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Package : linux-5.10
Version : 5.10.149-2~deb10u1
CVE ID : CVE-2021-4037 CVE-2022-0171 CVE-2022-1184 CVE-2022-1679
CVE-2022-2153 CVE-2022-2602 CVE-2022-2663 CVE-2022-2905
CVE-2022-3028 CVE-2022-3061 CVE-2022-3176 CVE-2022-3303
CVE-2022-3586 CVE-2022-3621 CVE-2022-3625 CVE-2022-3629
CVE-2022-3633 CVE-2022-3635 CVE-2022-3646 CVE-2022-3649
CVE-2022-20421 CVE-2022-20422 CVE-2022-39188 CVE-2022-39190
CVE-2022-39842 CVE-2022-40307 CVE-2022-41222 CVE-2022-41674
CVE-2022-42719 CVE-2022-42720 CVE-2022-42721 CVE-2022-42722
CVE-2022-43750
Debian Bug : 1017425 1019248
Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.
CVE-2021-4037
Christian Brauner reported that the inode_init_owner function for
the XFS filesystem in the Linux kernel allows local users to
create files with an unintended group ownership allowing attackers
to escalate privileges by making a plain file executable and SGID.
CVE-2022-0171
Mingwei Zhang reported that a cache incoherence issue in the SEV
API in the KVM subsystem may result in denial of service.
CVE-2022-1184
A flaw was discovered in the ext4 filesystem driver which can lead
to a use-after-free. A local user permitted to mount arbitrary
filesystems could exploit this to cause a denial of service (crash
or memory corruption) or possibly for privilege escalation.
CVE-2022-1679
The syzbot tool found a race condition in the ath9k_htc driver
which can lead to a use-after-free. This might be exploitable to
cause a denial service (crash or memory corruption) or possibly
for privilege escalation.
CVE-2022-2153
"kangel" reported a flaw in the KVM implementation for x86
processors which could lead to a null pointer dereference. A local
user permitted to access /dev/kvm could exploit this to cause a
denial of service (crash).
CVE-2022-2602
A race between handling an io_uring request and the Unix socket
garbage collector was discovered. An attacker can take advantage
of this flaw for local privilege escalation.
CVE-2022-2663
David Leadbeater reported flaws in the nf_conntrack_irc
connection-tracking protocol module. When this module is enabled
on a firewall, an external user on the same IRC network as an
internal user could exploit its lax parsing to open arbitrary TCP
ports in the firewall, to reveal their public IP address, or to
block their IRC connection at the firewall.
CVE-2022-2905
Hsin-Wei Hung reported a flaw in the eBPF verifier which can lead
to an out-of-bounds read. If unprivileged use of eBPF is enabled,
this could leak sensitive information. This was already disabled
by default, which would fully mitigate the vulnerability.
CVE-2022-3028
Abhishek Shah reported a race condition in the AF_KEY subsystem,
which could lead to an out-of-bounds write or read. A local user
could exploit this to cause a denial of service (crash or memory
corruption), to obtain sensitive information, or possibly for
privilege escalation.
CVE-2022-3061
A flaw was discovered in the i740 driver which may result in
denial of service.
This driver is not enabled in Debian's official kernel
configurations.
CVE-2022-3176
A use-after-free flaw was discovered in the io_uring subsystem
which may result in local privilege escalation to root.
CVE-2022-3303
A race condition in the snd_pcm_oss_sync function in the sound
subsystem in the Linux kernel due to improper locking may result
in denial of service.
CVE-2022-3586 (ZDI-22-1452)
The Zero Day Initiative reported a flaw in the sch_sfb network
scheduler, which may lead to a use-after-free and leak of
sensitive information from the kernel.
CVE-2022-3621, CVE-2022-3646
The syzbot tool found flaws in the nilfs2 filesystem driver which
can lead to a null pointer dereference or memory leak. A user
permitted to mount arbitrary filesystem images could use these to
cause a denial of service (crash or resource exhaustion).
CVE-2022-3625
A flaw was discovered in the devlink subsystem which can lead to
a use-after-free. The security impact of this is unclear.
CVE-2022-3629
The syzbot tool found a memory leak in the Virtual Socket Protocol
implementation. A local user could exploit this to cause a denial
of service (resource exhaustion).
CVE-2022-3633
The Linux Verification Center found a memory leak in the SAE J1939
protocol implementation. A local user could exploit this to cause
a denial of service (resource exhaustion).
CVE-2022-3635
Several race conditions were discovered in the idt77252 ATM
driver, which can lead to a use-after-free if the module is
removed. The security impact of this is unclear.
CVE-2022-3649
The syzbot tool found flaws in the nilfs2 filesystem driver which
can lead to a use-after-free. A user permitted to mount arbitrary
filesystem images could use these to cause a denial of service
(crash or memory corruption) or possibly for privilege escalation.
CVE-2022-20421
A use-after-free vulnerability was discovered in the
binder_inc_ref_for_node function in the Android binder driver. On
systems where the binder driver is loaded, a local user could
exploit this for privilege escalation.
CVE-2022-20422
A race condition was discovered in the instruction emulator for
64-bit Arm systems. Concurrent changes to the sysctls that
control the emulator could result in a null pointer dereference.
The security impact of this is unclear.
CVE-2022-39188
Jann Horn reported a race condition in the kernel's handling of
unmapping of certain memory ranges. When a driver created a memory
mapping with the VM_PFNMAP flag, which many GPU drivers do, the
memory mapping could be removed and freed before it was flushed
from the CPU TLBs. This could result in a page use-after-free. A
local user with access to such a device could exploit this to
cause a denial of service (crash or memory corruption) or possibly
for privilege escalation.
CVE-2022-39190
Gwangun Jung reported a flaw in the nf_tables subsystem. A local
user could exploit this to cause a denial of service (crash).
CVE-2022-39842
An integer overflow was discovered in the pxa3xx-gcu video driver
which could lead to a heap out-of-bounds write.
This driver is not enabled in Debian's official kernel
configurations.
CVE-2022-40307
A race condition was discovered in the EFI capsule-loader driver,
which could lead to use-after-free. A local user permitted to
access this device (/dev/efi_capsule_loader) could exploit this to
cause a denial of service (crash or memory corruption) or possibly
for privilege escalation. However, this device is normally only
accessible by the root user.
CVE-2022-41222
A race condition was discovered in the memory management subsystem
that can lead to stale TLB entries. A local user could exploit
this to cause a denial of service (memory corruption or crash),
information leak, or privilege escalation.
CVE-2022-41674, CVE-2022-42719, CVE-2022-42720, CVE-2022-42721,
CVE-2022-42722
Soenke Huster discovered several vulnerabilities in the mac80211
subsystem triggered by WLAN frames which may result in denial of
service or the execution of arbitrary code.
CVE-2022-43750
The syzbot tool found that the USB monitor (usbmon) driver allowed
user-space programs to overwrite the driver's data structures. A
local user permitted to access a USB monitor device could exploit
this to cause a denial of service (memory corruption or crash) or
possibly for privilege escalation. However, by default only the
root user can access such devices.
For Debian 10 buster, these problems have been fixed in version
5.10.149-2~deb10u1. This update also fixes a regression for some
older 32-bit PCs (bug #1017425), and enables the i10nm_edac driver
(bug #1019248). It additionally includes many more bug fixes from
stable updates 5.10.137-5.10.149 inclusive.
We recommend that you upgrade your linux-5.10 packages.
For the detailed security status of linux-5.10 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/linux-5.10
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
--
Ben Hutchings - Debian developer, member of kernel, installer and LTS teams
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