Strix
26.1K

CVE-2022-49344

MEDIUMCVSS 4.7/10EPSS 0.18%

Last modified

CVE-2022-49344 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.

Metrics

CVSS 3.1
4.7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.18%

8.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel>= 3.2.75, < 3.3—
LinuxLinux Kernel>= 3.4.111, < 3.5—
LinuxLinux Kernel>= 3.10.95, < 3.11—
LinuxLinux Kernel>= 3.12.52, < 3.13—
LinuxLinux Kernel>= 3.14.59, < 3.15—
LinuxLinux Kernel>= 3.18.26, < 3.19—
LinuxLinux Kernel>= 4.1.15, < 4.2—
LinuxLinux Kernel>= 4.2.8, < 4.3—
LinuxLinux Kernel>= 4.3.3, < 4.19.247—
LinuxLinux Kernel>= 4.20, < 5.4.198—
LinuxLinux Kernel>= 5.5, < 5.10.122—
LinuxLinux Kernel>= 5.11, < 5.15.47—
LinuxLinux Kernel>= 5.16, < 5.17.15—
LinuxLinux Kernel>= 5.18, < 5.18.4—
LinuxLinux Kernel5.19Rc1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-49344?
In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.
How severe is CVE-2022-49344?
CVE-2022-49344 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2022-49344?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-49344?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST