CVE-2023-3567: Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race
First published: Sun Jul 09 2023(Updated: )
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. In this flaw an attacker with local user access may ead to a system crash or a leak of internal kernel information. Reference: <a href="https://www.spinics.net/lists/stable-commits/msg285184.html">https://www.spinics.net/lists/stable-commits/msg285184.html</a>
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.2.0 | |
| Linux Linux kernel | =6.2.0-rc1 | |
| Linux Linux kernel | =6.2.0-rc2 | |
| Linux Linux kernel | =6.2.0-rc3 | |
| Linux Linux kernel | =6.2.0-rc4 | |
| Linux Linux kernel | =6.2.0-rc5 | |
| Linux Linux kernel | =6.2.0-rc6 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 | |
| Canonical Ubuntu Linux | =22.04 | |
| redhat/kernel | <6.2 | 6.2 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://www.spinics.net/lists/stable-commits/msg285184.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2221463
- https://access.redhat.com/security/cve/CVE-2023-3567
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/261504
- https://www.ibm.com/support/pages/node/7144861 (Advisory)
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/errata/RHSA-2024:0431
- https://access.redhat.com/errata/RHSA-2024:0432
- https://access.redhat.com/errata/RHSA-2024:0439
- https://access.redhat.com/errata/RHSA-2024:0448
- https://access.redhat.com/errata/RHSA-2024:0575
- 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-2023-3567
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3567
- https://nvd.nist.gov/vuln/detail/CVE-2023-3567
- https://security-tracker.debian.org/tracker/CVE-2023-3567
- https://ubuntu.com/security/CVE-2023-3567
- https://git.kernel.org/linus/226fae124b2dac217ea5436060d623ff3385bc34
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