A linux-5.10 security update has been released for Debian GNU/Linux 10 to address several vulnerabilities.

ELA-723-1 linux-5.10 security update

Package : linux-5.10
Version : 5.10.149-2~deb9u1 (stretch)

Related CVEs :
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

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.

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.

  ELA-723-1 linux-5.10 security update