CVE-2023-0266: Linux Kernel Use-After-Free Vulnerability
First published: Mon Jan 23 2023(Updated: )
A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e
Credit: cve-coordination@google.com cve-coordination@google.com cve-coordination@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=4.14<4.14.303 | |
| Linux Linux kernel | >=4.15<4.19.270 | |
| Linux Linux kernel | >=4.20<5.4.229 | |
| Linux Linux kernel | >=5.5<5.10.163 | |
| Linux Linux kernel | >=5.11<5.15.88 | |
| Linux Linux kernel | >=5.16<6.1.6 | |
| redhat/Kernel | <6.2 | 6.2 |
| Google Android | ||
| Linux kernel | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4
- https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e
- https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://launchpad.net/bugs/cve/CVE-2023-0266
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=56b88b50565cd8b946a2d00b0c83927b7ebb055e
- https://access.redhat.com/errata/RHSA-2023:1202
- https://access.redhat.com/errata/RHSA-2023:1203
- https://access.redhat.com/errata/RHSA-2023:1435
- https://access.redhat.com/errata/RHSA-2023:1469
- https://access.redhat.com/errata/RHSA-2023:1471
- https://access.redhat.com/errata/RHSA-2023:1470
- https://access.redhat.com/errata/RHSA-2023:1556
- https://access.redhat.com/errata/RHSA-2023:1554
- https://access.redhat.com/errata/RHSA-2023:1560
- https://access.redhat.com/errata/RHSA-2023:1557
- https://access.redhat.com/errata/RHSA-2023:1559
- https://access.redhat.com/errata/RHSA-2023:1584
- https://access.redhat.com/errata/RHSA-2023:1588
- https://access.redhat.com/errata/RHSA-2023:1590
- https://access.redhat.com/errata/RHSA-2023:1566
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2163379#c13
- https://access.redhat.com/errata/RHSA-2023:1662
- https://access.redhat.com/errata/RHSA-2023:1660
- https://access.redhat.com/errata/RHSA-2023:1659
- https://access.redhat.com/errata/RHSA-2023:1666
- https://access.redhat.com/errata/RHSA-2023:1677
- https://bugzilla.redhat.com/show_bug.cgi?id=2163379
- https://android.googlesource.com/kernel/common/+/cc6c5c7fa237f65b08b9618188efe4b24b9cd886
- https://source.android.com/docs/security/bulletin/2023-05-01 (Advisory)
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4;
- https://nvd.nist.gov/vuln/detail/CVE-2023-0266
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0266
- https://security-tracker.debian.org/tracker/CVE-2023-0266
- https://ubuntu.com/security/CVE-2023-0266
- https://git.kernel.org/linus/56b88b50565cd8b946a2d00b0c83927b7ebb055e
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