CVE-2024-43873

HIGH EPSS 12.3%
Published Aug 21, 20241y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Aug 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: vhost/vsock: always initialize seqpacket_allow There are two issues around seqpacket_allow: 1. seqpacket_allow is not initialized when socket is created. Thus if features are never set, it will be read uninitialized. 2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared, then seqpacket_allow will not be cleared appropriately (existing apps I know about don't usually do this but it's legal and there's no way to be sure no one relies on this). To fix: - initialize seqpacket_allow after allocation - set it unconditionally in set_features

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
12.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-909

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.14  –  <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 6

  • git.kernel.org https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b
    Patch