CVE-2024-25739
First published: Mon Feb 12 2024(Updated: )
create_empty_lvol in drivers/mtd/ubi/vtbl.c in the Linux kernel through 6.7.4 can attempt to allocate zero bytes, and crash, because of a missing check for ubi->leb_size. References: <a href="https://groups.google.com/g/syzkaller/c/Xl97YcQA4hg">https://groups.google.com/g/syzkaller/c/Xl97YcQA4hg</a> <a href="https://www.spinics.net/lists/kernel/msg5074816.html">https://www.spinics.net/lists/kernel/msg5074816.html</a> Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=68a24aba7c593eafa8fd00f2f76407b9b32b47a9">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=68a24aba7c593eafa8fd00f2f76407b9b32b47a9</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.9 | 6.9 |
| Linux Kernel | <=6.7.4 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 6.12.11-1 |
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Reference Links
- https://groups.google.com/g/syzkaller/c/Xl97YcQA4hg
- https://www.spinics.net/lists/kernel/msg5074816.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=68a24aba7c593eafa8fd00f2f76407b9b32b47a9
- https://launchpad.net/bugs/cve/CVE-2024-25739
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2263887
- https://access.redhat.com/errata/RHSA-2024:5102
- https://access.redhat.com/errata/RHSA-2024:5101
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2263879
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-25739
- https://nvd.nist.gov/vuln/detail/CVE-2024-25739
- https://security-tracker.debian.org/tracker/CVE-2024-25739
- https://ubuntu.com/security/CVE-2024-25739
- https://git.kernel.org/linus/68a24aba7c593eafa8fd00f2f76407b9b32b47a9
Frequently Asked Questions
What is the severity of CVE-2024-25739?
CVE-2024-25739 has a moderate severity due to a potential system crash caused by zero-byte allocation.
How do I fix CVE-2024-25739?
To resolve CVE-2024-25739, upgrade to Linux kernel version 6.9 or apply the relevant patches for affected versions.
Which versions of Linux are affected by CVE-2024-25739?
CVE-2024-25739 affects Linux kernel versions up to and including 6.7.4.
What causes the issue in CVE-2024-25739?
The issue in CVE-2024-25739 is caused by a missing check for the size of the logical erase block, leading to attempts to allocate zero bytes.
Is CVE-2024-25739 a critical vulnerability?
CVE-2024-25739 is not classified as critical but can lead to significant system instability if exploited.
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