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CVE-2024-49877

MEDIUMCVSS 5.5/10EPSS 0.25%

Last modified

CVE-2024-49877 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL.

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
0.25%

16.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 4.20, < 5.10.227
LinuxLinux Kernel>= 5.11, < 5.15.168
LinuxLinux Kernel>= 5.16, < 6.1.113
LinuxLinux Kernel>= 6.2, < 6.6.55
LinuxLinux Kernel>= 6.7, < 6.10.14
LinuxLinux Kernel>= 6.11, < 6.11.3
LinuxLinux Kernel4.4.204
LinuxLinux Kernel4.9.204
LinuxLinux Kernel4.14.157
LinuxLinux Kernel4.19.87

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2024-49877?
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL.
How severe is CVE-2024-49877?
CVE-2024-49877 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2024-49877?
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-2024-49877?

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

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Source: NVD / NIST