CVE-2024-42283net: nexthop: Initialize all fields in dumped nexthops
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 430a049190de3c9e219f43084de9f1122da04570 before fd06cb4a5fc7bda3dea31712618a62af72a1c6cb; 430a049190de3c9e219f43084de9f1122da04570 builds before 5cc4d71dda2dd4f1520f40e634a527022e48ccd8; 430a049190de3c9e219f43084de9f1122da04570 builds before 9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0; from 430a049190de3c9e219f43084de9f1122da04570 before 1377de719652d868f5317ba8398b7e74c5f0430b; from 430a049190de3c9e219f43084de9f1122da04570 before 7704460acd7f5d35eb07c52500987dc9b95313fb; from 430a049190de3c9e219f43084de9f1122da04570 before a13d3864b76ac87085ec530b2ff8e37482a63a96; 430a049190de3c9e219f43084de9f1122da04570 builds before 6d745cd0e9720282cd291d36b9db528aea18add2 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.3 before 5.4.282; from 5.5 before 5.10.224; from 5.11 before 5.15.165; from 5.16 before 6.1.103; from 6.2 before 6.6.44; from 6.7 before 6.10.3 | NVD |
References
- https://git.kernel.org/stable/c/fd06cb4a5fc7bda3dea31712618a62af72a1c6cbpatch
- https://git.kernel.org/stable/c/5cc4d71dda2dd4f1520f40e634a527022e48ccd8patch
- https://git.kernel.org/stable/c/9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0patch
- https://git.kernel.org/stable/c/1377de719652d868f5317ba8398b7e74c5f0430bpatch
- https://git.kernel.org/stable/c/7704460acd7f5d35eb07c52500987dc9b95313fbpatch
- https://git.kernel.org/stable/c/a13d3864b76ac87085ec530b2ff8e37482a63a96patch
- https://git.kernel.org/stable/c/6d745cd0e9720282cd291d36b9db528aea18add2patch
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.