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CVE-2022-49809

MEDIUMCVSS 5.5/10EPSS 0.16%

Last modified

CVE-2022-49809 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.

Metrics

CVSS 3.1
5.5/10

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

EPSS Probability
0.16%

5.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel>= 3.0.72, < 3.1—
LinuxLinux Kernel>= 3.1.1, < 4.9.334—
LinuxLinux Kernel>= 4.10, < 4.14.300—
LinuxLinux Kernel>= 4.15, < 4.19.267—
LinuxLinux Kernel>= 4.20, < 5.4.225—
LinuxLinux Kernel>= 5.5, < 5.10.156—
LinuxLinux Kernel>= 5.11, < 5.15.80—
LinuxLinux Kernel>= 5.16, < 6.0.10—
LinuxLinux Kernel3.1—
LinuxLinux Kernel6.1Rc1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2022-49809?
In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.
How severe is CVE-2022-49809?
CVE-2022-49809 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2022-49809?
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-2022-49809?

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

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Source: NVD / NIST