CVE-2024-26736: afs: Increase buffer size in afs_update_volume_status()
First published: Wed Apr 03 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: afs: Increase buffer size in afs_update_volume_status() The max length of volume->vid value is 20 characters. So increase idbuf[] size up to 24 to avoid overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE. [DH: Actually, it's 20 + NUL, so increase it to 24 and use snprintf()]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=4.15<5.4.270 | |
| Linux Kernel | >=5.5<5.10.211 | |
| Linux Kernel | >=5.11<5.15.150 | |
| Linux Kernel | >=5.16<6.1.80 | |
| Linux Kernel | >=6.2<6.6.19 | |
| Linux Kernel | >=6.7<6.7.7 | |
| Linux Kernel | =6.8-rc1 | |
| Linux Kernel | =6.8-rc2 | |
| Linux Kernel | =6.8-rc3 | |
| Linux Kernel | =6.8-rc4 | |
| Linux Kernel | =6.8-rc5 | |
| Debian Linux | =10.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://git.kernel.org/stable/c/5c27d85a69fa16a08813ba37ddfb4bbc9a1ed6b5
- https://git.kernel.org/stable/c/6e6065dd25b661420fac19c34282b6c626fcd35e
- https://git.kernel.org/stable/c/6ea38e2aeb72349cad50e38899b0ba6fbcb2af3d
- https://git.kernel.org/stable/c/d34a5e57632bb5ff825196ddd9a48ca403626dfa
- https://git.kernel.org/stable/c/d9b5e2b7a8196850383c70d099bfd39e81ab6637
- https://git.kernel.org/stable/c/e56662160fc24d28cb75ac095cc6415ae1bda43e
- https://git.kernel.org/stable/c/e8530b170e464017203e3b8c6c49af6e916aece1
- https://launchpad.net/bugs/cve/CVE-2024-26736
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26736
- https://nvd.nist.gov/vuln/detail/CVE-2024-26736
- https://security-tracker.debian.org/tracker/CVE-2024-26736
- https://ubuntu.com/security/CVE-2024-26736
- https://git.kernel.org/linus/6ea38e2aeb72349cad50e38899b0ba6fbcb2af3d
Frequently Asked Questions
What is the severity of CVE-2024-26736?
CVE-2024-26736 is classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2024-26736?
To fix CVE-2024-26736, update your Linux kernel package to version 5.10.223-1, 5.10.226-1, 6.1.119-1, 6.1.123-1, 6.12.10-1, or 6.12.11-1.
What is the impact of CVE-2024-26736?
The impact of CVE-2024-26736 can lead to a buffer overflow in the AFS module within the Linux kernel.
Which Linux kernel versions are affected by CVE-2024-26736?
CVE-2024-26736 affects multiple versions of the Linux kernel prior to the fixed releases mentioned.
Who discovered CVE-2024-26736?
CVE-2024-26736 was discovered by the Linux Verification Center.
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