CVE-2024-50262
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: alma — https://errata.almalinux.org/9/ALSA-2024-11486.html
Vendor advisory: alma — https://bugzilla.redhat.com/2324892
Vendor advisory: alma — https://bugzilla.redhat.com/2324868
Vendor advisory: alma — https://bugzilla.redhat.com/2324867
Vendor advisory: alma — https://bugzilla.redhat.com/2324612
Vendor advisory: alma — https://bugzilla.redhat.com/2324332
Vendor advisory: alma — https://bugzilla.redhat.com/2324315
Vendor advisory: alma — https://bugzilla.redhat.com/2323955
Vendor advisory: alma — https://bugzilla.redhat.com/2323944
Vendor advisory: alma — https://bugzilla.redhat.com/2323937
Vendor advisory: alma — https://bugzilla.redhat.com/2323930
Vendor advisory: alma — https://bugzilla.redhat.com/2323904
Vendor advisory: alma — https://bugzilla.redhat.com/2320517
Vendor advisory: alma — https://bugzilla.redhat.com/2320254
Vendor advisory: alma — https://bugzilla.redhat.com/2312085
Vendor advisory: alma — https://bugzilla.redhat.com/2311717
Vendor advisory: alma — https://bugzilla.redhat.com/2293429
Vendor advisory: alma — https://bugzilla.redhat.com/2280462
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-50262
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2024-50262.html
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2024:11486
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.119-1 |
| debian | bullseye | fixed | 5.10.234-1 |
| debian | forky | fixed | 6.11.7-1 |
| debian | sid | fixed | 6.11.7-1 |
| debian | trixie | fixed | 6.11.7-1 |
| linux-kernel | affected | 4.19.323 | |
| linux-kernel | 6.12 | affected | |
References
- https://access.redhat.com/errata/RHSA-2024:11486
- https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21
- https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68
- https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6
- https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c
- https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d
- https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba
- https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980
- https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://www.suse.com/security/cve/CVE-2024-50262.html
- https://security-tracker.debian.org/tracker/CVE-2024-50262
- https://bugzilla.redhat.com/2280462
- https://bugzilla.redhat.com/2293429
- https://bugzilla.redhat.com/2311717
- https://bugzilla.redhat.com/2312085
- https://bugzilla.redhat.com/2320254
- https://bugzilla.redhat.com/2320517
- https://bugzilla.redhat.com/2323904
- https://bugzilla.redhat.com/2323930
- https://bugzilla.redhat.com/2323937
CWEs
CWE-787
Verify integrity in audit chain (admin only). AS-IS.