CVE-2023-6531: Kernel: gc's deletion of an skb races with unix_stream_read_generic() leading to uaf
First published: Tue Dec 05 2023(Updated: )
A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.7 | |
| Linux Linux kernel | =6.7-rc1 | |
| Linux Linux kernel | =6.7-rc2 | |
| Linux Linux kernel | =6.7-rc3 | |
| Linux Linux kernel | =6.7-rc4 | |
| Redhat Enterprise Linux | =9.0 | |
| redhat/Kernel | <6.7 | 6.7 |
| ubuntu/linux | <6.5.0-17.17 | 6.5.0-17.17 |
| ubuntu/linux-aws | <6.5.0-1013.13 | 6.5.0-1013.13 |
| ubuntu/linux-azure | <6.5.0-1015.15 | 6.5.0-1015.15 |
| ubuntu/linux-gcp | <6.5.0-1013.13 | 6.5.0-1013.13 |
| ubuntu/linux-hwe-6.5 | <6.5.0-17.17~22.04.1 | 6.5.0-17.17~22.04.1 |
| ubuntu/linux-laptop | <6.5.0-1009.12 | 6.5.0-1009.12 |
| ubuntu/linux-lowlatency | <6.5.0-17.17.1 | 6.5.0-17.17.1 |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.5.0-17.17.1.1.1~22.04.1 | 6.5.0-17.17.1.1.1~22.04.1 |
| ubuntu/linux-oem-6.1 | <6.1.0-1033.33 | 6.1.0-1033.33 |
| ubuntu/linux-oem-6.5 | <6.5.0-1014.15 | 6.5.0-1014.15 |
| ubuntu/linux-oracle | <6.5.0-1015.15 | 6.5.0-1015.15 |
| ubuntu/linux-raspi | <6.5.0-1010.13 | 6.5.0-1010.13 |
| ubuntu/linux-riscv | <6.5.0-17.17.1 | 6.5.0-17.17.1 |
| ubuntu/linux-starfive | <6.5.0-1007.8 | 6.5.0-1007.8 |
| debian/linux | 4.19.249-2 4.19.304-1 5.10.209-2 5.10.205-2 6.1.76-1 6.1.85-1 6.6.15-2 6.7.12-1 | |
| debian/linux-5.10 | 5.10.209-2~deb10u1 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2023-6531
- https://bugzilla.redhat.com/show_bug.cgi?id=2253034
- https://lore.kernel.org/all/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com/
- https://launchpad.net/bugs/cve/CVE-2023-6531
- https://git.kernel.org/linus/705318a99a138c29a512a72c3e0043b3cd7f55f4 (6.7-rc5)
- https://ubuntu.com/security/notices/USN-6624-1
- https://ubuntu.com/security/notices/USN-6639-1
- https://ubuntu.com/security/notices/USN-6652-1
- https://www.cve.org/CVERecord?id=CVE-2023-6531
- https://nvd.nist.gov/vuln/detail/CVE-2023-6531
- https://security-tracker.debian.org/tracker/CVE-2023-6531
- https://git.kernel.org/linus/0091bfc81741b8d3aeb3b7ab8636f911b2de6e80
- https://git.kernel.org/linus/705318a99a138c29a512a72c3e0043b3cd7f55f4
- https://ubuntu.com/security/CVE-2023-6531
- https://access.redhat.com/errata/RHSA-2024:2394
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