CVE-2024-50143: udf: fix uninit-value use in udf_get_fileshortad
First published: Thu Nov 07 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: udf: fix uninit-value use in udf_get_fileshortad Check for overflow when computing alen in udf_current_aext to mitigate later uninit-value use in udf_get_fileshortad KMSAN bug[1]. After applying the patch reproducer did not trigger any issue[2]. [1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df [2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <4.19.323 | |
| Linux Kernel | >=4.20<5.4.285 | |
| Linux Kernel | >=5.5<5.15.170 | |
| Linux Kernel | >=5.16<6.1.115 | |
| Linux Kernel | >=6.2<6.6.59 | |
| Linux Kernel | >=6.7<6.11.6 | |
| Linux Kernel | =6.12-rc1 | |
| debian/linux | <=5.10.223-1<=5.10.234-1 | 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/5eb76fb98b3335aa5cca6a7db2e659561c79c32b
- https://git.kernel.org/stable/c/417bd613bdbe791549f7687bb1b9b8012ff111c2
- https://git.kernel.org/stable/c/4fc0d8660e391dcd8dde23c44d702be1f6846c61
- https://git.kernel.org/stable/c/72e445df65a0aa9066c6fe2b8736ba2fcca6dac7
- https://git.kernel.org/stable/c/1ac49babc952f48d82676979b20885e480e69be8
- https://git.kernel.org/stable/c/e52e0b92ed31dc62afbda15c243dcee0bb5bb58d
- https://git.kernel.org/stable/c/264db9d666ad9a35075cc9ed9ec09d021580fbb1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50143
- https://nvd.nist.gov/vuln/detail/CVE-2024-50143
- https://launchpad.net/bugs/cve/CVE-2024-50143
- https://security-tracker.debian.org/tracker/CVE-2024-50143
- https://ubuntu.com/security/CVE-2024-50143
- https://git.kernel.org/linus/264db9d666ad9a35075cc9ed9ec09d021580fbb1
Frequently Asked Questions
What is the severity of CVE-2024-50143?
The severity of CVE-2024-50143 has not been officially rated but it involves uninitialized value usage in the Linux kernel which may lead to security issues.
How do I fix CVE-2024-50143?
To fix CVE-2024-50143, apply the latest patches provided by your Linux distribution that include the resolution for the vulnerability.
Which Linux kernel versions are affected by CVE-2024-50143?
CVE-2024-50143 affects various versions of the Linux kernel from 4.20 up to 6.12-rc1.
What type of vulnerability is CVE-2024-50143?
CVE-2024-50143 is related to the use of uninitialized values in the udf_get_fileshortad function within the Linux kernel.
Is there a workaround for CVE-2024-50143?
There are no documented workarounds for CVE-2024-50143 other than applying the security patch.
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