CVE-2023-0394: Null Pointer Dereference
First published: Tue Jan 17 2023(Updated: )
A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:4.18.0-477.10.1.rt7.274.el8_8 | 0:4.18.0-477.10.1.rt7.274.el8_8 |
| redhat/kernel | <0:4.18.0-477.10.1.el8_8 | 0:4.18.0-477.10.1.el8_8 |
| redhat/kernel | <0:5.14.0-284.11.1.el9_2 | 0:5.14.0-284.11.1.el9_2 |
| redhat/kernel-rt | <0:5.14.0-284.11.1.rt14.296.el9_2 | 0:5.14.0-284.11.1.rt14.296.el9_2 |
| redhat/Kernel | <6.2 | 6.2 |
| Linux Kernel | <6.2 | |
| Linux Kernel | =6.2-rc1 | |
| Linux Kernel | =6.2-rc2 | |
| Linux Kernel | =6.2-rc3 | |
| 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 |
Remedy
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2023-0394 https://nvd.nist.gov/vuln/detail/CVE-2023-0394 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb3e9864cdbe35ff6378966660edbcbac955fe17 https://www.openwall.com/lists/oss-security/2023/01/18/2
- https://bugzilla.redhat.com/show_bug.cgi?id=2162120
- https://access.redhat.com/errata/RHSA-2023:2736
- https://access.redhat.com/errata/RHSA-2023:2951
- https://access.redhat.com/errata/RHSA-2023:2458
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/security/cve/cve-2023-0394
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb3e9864cdbe35ff6378966660edbcbac955fe17
- https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230302-0005/
- https://launchpad.net/bugs/cve/CVE-2023-0394
- https://access.redhat.com/errata/RHSA-2024:0412
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0394
- https://nvd.nist.gov/vuln/detail/CVE-2023-0394
- https://security-tracker.debian.org/tracker/CVE-2023-0394
- https://ubuntu.com/security/CVE-2023-0394
- https://www.openwall.com/lists/oss-security/2023/01/18/2
- https://git.kernel.org/linus/cb3e9864cdbe35ff6378966660edbcbac955fe17
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2023-0394?
CVE-2023-0394 has a high severity due to its potential to cause system crashes.
How do I fix CVE-2023-0394?
To fix CVE-2023-0394, update your Linux kernel to the specified versions or later: 0:4.18.0-477.10.1.rt7.274.el8_8, 0:4.18.0-477.10.1.el8_8, 0:5.14.0-284.11.1.el9_2, 0:5.14.0-284.11.1.rt14.296.el9_2, or greater.
Which Linux kernel versions are affected by CVE-2023-0394?
CVE-2023-0394 affects multiple kernel versions including versions prior to 6.2.
What systems are likely to be impacted by CVE-2023-0394?
Systems running vulnerable versions of the Linux kernel, particularly Red Hat and Debian distributions, are likely to be impacted by CVE-2023-0394.
Is there a workaround for CVE-2023-0394?
Currently, the recommended mitigation for CVE-2023-0394 is to update to a patched version of the Linux kernel, as no specific workaround has been provided.
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