CVE-2023-6176: Kernel: local dos vulnerability in scatterwalk_copychunks
First published: Mon Jul 03 2023(Updated: )
A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | ||
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 | |
| 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 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2219359
- https://access.redhat.com/security/cve/CVE-2023-6176
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cfaa80c91f6f99b9342b6557f0f0e1143e434066
- http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://launchpad.net/bugs/cve/CVE-2023-6176
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2250069
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6176
- https://nvd.nist.gov/vuln/detail/CVE-2023-6176
- https://security-tracker.debian.org/tracker/CVE-2023-6176
- https://ubuntu.com/security/CVE-2023-6176
- https://git.kernel.org/linus/cfaa80c91f6f99b9342b6557f0f0e1143e434066
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-6176?
CVE-2023-6176 has a severity rating that suggests it could lead to local system crashes or potential escalation of privileges.
How do I fix CVE-2023-6176?
To fix CVE-2023-6176, upgrade to the patched versions of the Linux kernel, specifically 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.
Which systems are affected by CVE-2023-6176?
CVE-2023-6176 affects various versions of the Linux kernel, including those used in Debian and Red Hat Enterprise Linux 8.0 and 9.0.
Who can exploit CVE-2023-6176?
CVE-2023-6176 can be exploited by local users who can send specially crafted packets to the system.
What impact does CVE-2023-6176 have on system security?
CVE-2023-6176 may allow local users to crash the operating system or escalate privileges, posing a significant security risk.
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