CVE-2024-42283
Description
In the Linux kernel, the following vulnerability has been resolved: net: nexthop: Initialize all fields in dumped nexthops struct nexthop_grp contains two reserved fields that are not initialized by nla_put_nh_group(), and carry garbage. This can be observed e.g. with strace (edited for clarity): # ip nexthop add id 1 dev lo # ip nexthop add id 101 group 1 # strace -e recvmsg ip nexthop get id 101 ... recvmsg(... [{nla_len=12, nla_type=NHA_GROUP}, [{id=1, weight=0, resvd1=0x69, resvd2=0x67}]] ...) = 52 The fields are reserved and therefore not currently used. But as they are, they leak kernel memory, and the fact they are not just zero complicates repurposing of the fields for new ends. Initialize the full structure.
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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.106-1 |
| debian | bullseye | fixed | 5.10.226-1 |
| debian | forky | fixed | 6.10.3-1 |
| debian | sid | fixed | 6.10.3-1 |
| debian | trixie | fixed | 6.10.3-1 |
| linux-kernel | affected | 5.4.282 | |
| almalinux | 9 | fixed | rv-5.14.0-503.14.1.el9_5.aarch64.rpm |
References
- https://access.redhat.com/errata/RHSA-2024:9605
- https://git.kernel.org/stable/c/1377de719652d868f5317ba8398b7e74c5f0430b
- https://git.kernel.org/stable/c/5cc4d71dda2dd4f1520f40e634a527022e48ccd8
- https://git.kernel.org/stable/c/6d745cd0e9720282cd291d36b9db528aea18add2
- https://git.kernel.org/stable/c/7704460acd7f5d35eb07c52500987dc9b95313fb
- https://git.kernel.org/stable/c/9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0
- https://git.kernel.org/stable/c/a13d3864b76ac87085ec530b2ff8e37482a63a96
- https://git.kernel.org/stable/c/fd06cb4a5fc7bda3dea31712618a62af72a1c6cb
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://www.suse.com/security/cve/CVE-2024-42283.html
- https://security-tracker.debian.org/tracker/CVE-2024-42283
- https://bugzilla.redhat.com/2315176
- https://bugzilla.redhat.com/2315210
- https://errata.almalinux.org/9/ALSA-2024-9605.html
CWEs
CWE-908
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.