CVE-2023-2163: Incorrect Verifier Branch Pruning Logic Leads To Arbitrary Read/Write In Linux Kernel and Lateral Privilege Escalation
First published: Wed Sep 20 2023(Updated: )
Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape. Reference and upstream patch: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed</a>
Credit: cve-coordination@google.com cve-coordination@google.com cve-coordination@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.3 | 6.3 |
| IBM Security Verify Governance, Identity Manager software component | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager virtual appliance component | <=ISVG 10.0.2 | |
| Linux Kernel | >=5.3<5.4.242 | |
| Linux Kernel | >=5.5<5.10.179 | |
| Linux Kernel | >=5.11<5.15.109 | |
| Linux Kernel | >=5.16<6.1.26 | |
| Linux Kernel | >=6.2<6.2.13 | |
| Linux Kernel | >=5.4<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 | =6.3-rc6 | |
| Linux Kernel | =6.3-rc7 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed
- https://launchpad.net/bugs/cve/CVE-2023-2163
- https://access.redhat.com/errata/RHSA-2023:7548
- https://access.redhat.com/errata/RHSA-2023:7549
- https://access.redhat.com/errata/RHSA-2023:7554
- https://access.redhat.com/errata/RHSA-2024:0376
- https://access.redhat.com/errata/RHSA-2024:0378
- https://access.redhat.com/errata/RHSA-2024:0381
- https://access.redhat.com/errata/RHSA-2024:0402
- https://access.redhat.com/errata/RHSA-2024:0403
- https://access.redhat.com/errata/RHSA-2024:0439
- https://access.redhat.com/errata/RHSA-2024:0448
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/errata/RHSA-2024:0554
- https://access.redhat.com/errata/RHSA-2024:0563
- https://access.redhat.com/errata/RHSA-2024:0562
- https://access.redhat.com/errata/RHSA-2024:0593
- https://access.redhat.com/errata/RHSA-2024:0575
- https://access.redhat.com/errata/RHSA-2024:1250
- https://access.redhat.com/errata/RHSA-2024:1253
- https://access.redhat.com/errata/RHSA-2024:1306
- https://bugzilla.redhat.com/show_bug.cgi?id=2240249
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2163
- https://nvd.nist.gov/vuln/detail/CVE-2023-2163
- https://security-tracker.debian.org/tracker/CVE-2023-2163
- https://ubuntu.com/security/CVE-2023-2163
- https://bughunters.google.com/blog/6303226026131456/a-deep-dive-into-cve-2023-2163-how-we-found-and-fixed-an-ebpf-linux-kernel-vulnerability
- https://git.kernel.org/linus/71b547f561247897a0a14f3082730156c0533fed
- https://www.ibm.com/support/pages/node/7172423 (Advisory)
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