CVE-2023-1611: Use After Free
First published: Thu Mar 23 2023(Updated: )
A slab-use-after-free read flaw was found in btrfs_search_slot in fs/btrfs/ctree.c The quota assigned ioctl can currently run in parallel with a quota disable ioctl call. The assign ioctl uses the quota root, while the disable ioctl frees that root, and therefore we can have a use-after-free triggered in the assign ioctl. Reference: <a href="https://lore.kernel.org/linux-btrfs/35b9a70650ea947387cf352914a8774b4f7e8a6f.1679481128.git.fdmanana@suse.com/">https://lore.kernel.org/linux-btrfs/35b9a70650ea947387cf352914a8774b4f7e8a6f.1679481128.git.fdmanana@suse.com/</a>
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.10.177 | 5.10.177 |
| redhat/kernel | <5.15.106 | 5.15.106 |
| redhat/kernel | <6.1.23 | 6.1.23 |
| redhat/kernel | <6.2.10 | 6.2.10 |
| Fedora | =36 | |
| Fedora | =37 | |
| Linux kernel | >=2.6.13<5.10.177 | |
| Linux kernel | >=5.15<5.15.106 | |
| Linux kernel | >=6.1<6.1.23 | |
| Linux kernel | >=6.2<6.2.10 | |
| Linux kernel | =2.6.12-rc2 | |
| Linux kernel | =2.6.12-rc3 | |
| Linux kernel | =2.6.12-rc4 | |
| Linux kernel | =2.6.12-rc5 | |
| Linux kernel | =2.6.12-rc6 | |
| Linux kernel | =6.3 | |
| Linux kernel | =6.3-rc1 | |
| Linux kernel | =6.3-rc2 | |
| Linux kernel | =6.3-rc3 | |
| Linux kernel | =6.3-rc4 | |
| Linux kernel | =6.3-rc5 | |
| Linux Kernel | >=2.6.13<5.10.177 | |
| Linux Kernel | >=5.15<5.15.106 | |
| Linux Kernel | >=6.1<6.1.23 | |
| Linux Kernel | >=6.2<6.2.10 | |
| Linux Kernel | =2.6.12-rc2 | |
| Linux Kernel | =2.6.12-rc3 | |
| Linux Kernel | =2.6.12-rc4 | |
| Linux Kernel | =2.6.12-rc5 | |
| Linux Kernel | =2.6.12-rc6 | |
| Linux Kernel | =6.3 | |
| Linux Kernel | =6.3-rc1 | |
| Linux Kernel | =6.3-rc2 | |
| Linux Kernel | =6.3-rc3 | |
| Linux Kernel | =6.3-rc4 | |
| Linux Kernel | =6.3-rc5 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2181342
- https://github.com/torvalds/linux/commit/2f1a6be12ab6c8470d5776e68644726c94257c54
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5QCM6XO4HSPLGR3DFYWFRIA3GCBIHZR4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZWECAZ7V7EPSXMINO6Q6KWNKDY2CO6ZW/
- https://lore.kernel.org/linux-btrfs/35b9a70650ea947387cf352914a8774b4f7e8a6f.1679481128.git.fdmanana@suse.com/
- https://launchpad.net/bugs/cve/CVE-2023-1611
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2181346
- https://access.redhat.com/security/cve/cve-2023-1611
- https://lore.kernel.org/linux-btrfs/35b9a70650ea947387cf352914a8774b4f7e8a6f.1679481128.git.fdmanana%40suse.com/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWECAZ7V7EPSXMINO6Q6KWNKDY2CO6ZW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5QCM6XO4HSPLGR3DFYWFRIA3GCBIHZR4/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1611
- https://nvd.nist.gov/vuln/detail/CVE-2023-1611
- https://security-tracker.debian.org/tracker/CVE-2023-1611
- https://ubuntu.com/security/CVE-2023-1611
Frequently Asked Questions
What is the severity of CVE-2023-1611?
CVE-2023-1611 is classified as a critical vulnerability due to its potential for a use-after-free condition that can be exploited.
How do I fix CVE-2023-1611?
To mitigate CVE-2023-1611, update your kernel to the latest version specified in the remediation documents from your Linux distribution.
What systems are affected by CVE-2023-1611?
CVE-2023-1611 affects various Linux kernel versions, including kernels up to 5.10.177, 5.15.106, 6.1.23, and 6.2.10.
What type of vulnerability is CVE-2023-1611?
CVE-2023-1611 is a slab-use-after-free read vulnerability that can lead to memory access violations.
Is there a proof of concept for CVE-2023-1611?
Yes, CVE-2023-1611 has had discussions and references in exploit communities, but specific proof of concept details may vary.
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