CVE-2024-42283

MEDIUM EPSS 15.2%
Published Aug 17, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 17, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-908

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥5.3  –  <5.4.282
linuxlinux_kernel*≥5.5  –  <5.10.224
linuxlinux_kernel*≥5.11  –  <5.15.165
linuxlinux_kernel*≥5.16  –  <6.1.103
linuxlinux_kernel*≥6.2  –  <6.6.44
linuxlinux_kernel*≥6.7  –  <6.10.3

References 10

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-265688.html
  • git.kernel.org https://git.kernel.org/stable/c/1377de719652d868f5317ba8398b7e74c5f0430b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5cc4d71dda2dd4f1520f40e634a527022e48ccd8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6d745cd0e9720282cd291d36b9db528aea18add2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7704460acd7f5d35eb07c52500987dc9b95313fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a13d3864b76ac87085ec530b2ff8e37482a63a96
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fd06cb4a5fc7bda3dea31712618a62af72a1c6cb
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1377de719652d868f5317ba8398b7e74c5f0430b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5cc4d71dda2dd4f1520f40e634a527022e48ccd8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6d745cd0e9720282cd291d36b9db528aea18add2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7704460acd7f5d35eb07c52500987dc9b95313fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a13d3864b76ac87085ec530b2ff8e37482a63a96
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fd06cb4a5fc7bda3dea31712618a62af72a1c6cb
    Patch