CVE-2023-6817
Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free. We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 6.7 | Affected | — |
| — | Affected | 5.10.204 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.6.8-1 |
| sid | Fixed | 6.6.8-1 |
| forky | Fixed | 6.6.8-1 |
| bullseye | Fixed | 5.10.205-2 |
| bookworm | Fixed | 6.1.69-1 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
References
- https://access.redhat.com/errata/RHSA-2024:1248
- http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
- http://www.openwall.com/lists/oss-security/2023/12/22/13
- http://www.openwall.com/lists/oss-security/2023/12/22/6
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=317eb9685095678f2c9f5a8189de698c5354316a
- https://kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://www.suse.com/security/cve/CVE-2023-6817.html
- https://errata.rockylinux.org/RXSA-2024:1248
- https://security-tracker.debian.org/tracker/CVE-2023-6817
- https://access.redhat.com/errata/RHSA-2024:0897
- https://bugzilla.redhat.com/2087568
- https://bugzilla.redhat.com/2144379
- https://bugzilla.redhat.com/2161310
- https://bugzilla.redhat.com/2173403
- https://bugzilla.redhat.com/2187813
- https://bugzilla.redhat.com/2187931
- https://bugzilla.redhat.com/2231800
- https://bugzilla.redhat.com/2237757
- https://bugzilla.redhat.com/2244723
- https://bugzilla.redhat.com/2245514
- https://bugzilla.redhat.com/2246944
- https://bugzilla.redhat.com/2246945
CWEs
CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.