CVE-2024-38612
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: fix invalid unregister error path The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL is not defined. In that case if seg6_hmac_init() fails, the genl_unregister_family() isn't called. This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible use-after-free and null-ptr-deref") replaced unregister_pernet_subsys() with genl_unregister_family() in this error path.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-38612
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2024-38612.html
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89a
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2024:9315
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.94-1 |
| debian | bullseye | fixed | 5.10.221-1 |
| debian | forky | fixed | 6.8.12-1 |
| debian | sid | fixed | 6.8.12-1 |
| debian | trixie | fixed | 6.8.12-1 |
| linux-kernel | affected | 4.19.316 |
References
- https://access.redhat.com/errata/RHSA-2024:9315
- https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c
- https://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7
- https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45
- https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01
- https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66
- https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4
- https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89a
- https://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4
- https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- https://www.suse.com/security/cve/CVE-2024-38612.html
- https://security-tracker.debian.org/tracker/CVE-2024-38612
CWEs
CWE-416 CWE-476
Verify integrity in audit chain (admin only). AS-IS.