CVE-2024-49944

MEDIUM EPSS 19.4%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start In sctp_listen_start() invoked by sctp_inet_listen(), it should set the sk_state back to CLOSED if sctp_autobind() fails due to whatever reason. Otherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse is already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will be dereferenced as sk_state is LISTENING, which causes a crash as bind_hash is NULL. KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617 Call Trace: <TASK> __sys_listen_socket net/socket.c:1883 [inline] __sys_listen+0x1b7/0x230 net/socket.c:1894 __do_sys_listen net/socket.c:1902 [inline]

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
19.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥2.6.30  –  <5.10.227
linuxlinux_kernel*≥5.11  –  <5.15.168
linuxlinux_kernel*≥5.16  –  <6.1.113
linuxlinux_kernel*≥6.2  –  <6.6.55
linuxlinux_kernel*≥6.7  –  <6.10.14
linuxlinux_kernel*≥6.11  –  <6.11.3
linuxlinux_kernel6.12any

References 13

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-265688.html
  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-355557.html
  • git.kernel.org https://git.kernel.org/stable/c/0e4e2e60556c6ed00e8450b720f106a268d23062
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89bbead9d897c77d0b566349c8643030ff2abeba
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0e4e2e60556c6ed00e8450b720f106a268d23062
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89bbead9d897c77d0b566349c8643030ff2abeba
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d
    Patch