CVE-2024-26843: efi: runtime: Fix potential overflow of soft-reserved region size
First published: Wed Apr 17 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: efi: runtime: Fix potential overflow of soft-reserved region size md_size will have been narrowed if we have >= 4GB worth of pages in a soft-reserved region.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.10.211 | 5.10.211 |
| redhat/kernel | <5.15.150 | 5.15.150 |
| redhat/kernel | <6.1.80 | 6.1.80 |
| redhat/kernel | <6.6.19 | 6.6.19 |
| redhat/kernel | <6.7.7 | 6.7.7 |
| redhat/kernel | <6.8 | 6.8 |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/156cb12ffdcf33883304f0db645e1eadae712fe0
- https://git.kernel.org/stable/c/4aa36b62c3eaa869860bf78b1146e9f2b5f782a9
- https://git.kernel.org/stable/c/4fff3d735baea104017f2e3c245e27cdc79f2426
- https://git.kernel.org/stable/c/700c3f642c32721f246e09d3a9511acf40ae42be
- https://git.kernel.org/stable/c/cf3d6813601fe496de7f023435e31bfffa74ae70
- https://git.kernel.org/stable/c/de1034b38a346ef6be25fe8792f5d1e0684d5ff4
- https://launchpad.net/bugs/cve/CVE-2024-26843
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://access.redhat.com/security/cve/CVE-2024-26843
- https://lore.kernel.org/linux-cve-announce/2024041716-CVE-2024-26843-51a0@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2275566
- 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://access.redhat.com/errata/RHSA-2025:2270
- https://bugzilla.redhat.com/show_bug.cgi?id=2275565
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26843
- https://nvd.nist.gov/vuln/detail/CVE-2024-26843
- https://security-tracker.debian.org/tracker/CVE-2024-26843
- https://ubuntu.com/security/CVE-2024-26843
- https://git.kernel.org/linus/de1034b38a346ef6be25fe8792f5d1e0684d5ff4
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-26843?
CVE-2024-26843 has been assigned a medium severity due to potential overflow issues in the Linux kernel.
How do I fix CVE-2024-26843?
To fix CVE-2024-26843, update your kernel to the patched versions specified by your distribution such as Red Hat or Debian.
Which versions of the Linux kernel are affected by CVE-2024-26843?
CVE-2024-26843 affects Linux kernel versions prior to 5.10.211, 5.15.150, 6.1.80, 6.6.19, 6.7.7, and 6.8.
Is CVE-2024-26843 specific to any Linux distributions?
Yes, CVE-2024-26843 affects specific kernel packages from Red Hat and Debian distributions.
What impact does CVE-2024-26843 have on users?
Users may experience system instability or vulnerabilities that could be exploited, thus running unpatched versions is risky.
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