CVE-2024-41007

LOW EPSS 13.6%
Published Jul 15, 20241y ago · Modified Jun 17, 20262w ago
3.3 CVSS 3.1
Low
Find Similar
Published Jul 15, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: avoid too many retransmit packets If a TCP socket is using TCP_USER_TIMEOUT, and the other peer retracted its window to zero, tcp_retransmit_timer() can retransmit a packet every two jiffies (2 ms for HZ=1000), for about 4 minutes after TCP_USER_TIMEOUT has 'expired'. The fix is to make sure tcp_rtx_probe0_timed_out() takes icsk->icsk_user_timeout into account. Before blamed commit, the socket would not timeout after icsk->icsk_user_timeout, but would use standard exponential backoff for the retransmits. Also worth noting that before commit e89688e3e978 ("net: tcp: fix unexcepted socket die when snd_wnd is 0"), the issue would last 2 minutes instead of 4.

CVSS Details

Base Score
3.3
Exploitability
1.8
Impact
1.4
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
13.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥4.19  –  <5.4.280
linuxlinux_kernel*≥5.5  –  <5.10.222
linuxlinux_kernel*≥5.11  –  <5.15.163
linuxlinux_kernel*≥5.16  –  <6.1.100
linuxlinux_kernel*≥6.2  –  <6.6.41
linuxlinux_kernel*≥6.7  –  <6.9.10

References 9

  • git.kernel.org https://git.kernel.org/stable/c/04317a2471c2f637b4c49cbd0e9c0d04a519f570
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d7e64d70a11d988553a08239c810a658e841982
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66cb64a1d2239cd0309f9b5038b05462570a5be1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7bb7670f92bfbd05fc41a8f9a8f358b7ffed65f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97a9063518f198ec0adb2ecb89789de342bb8283
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2346fca5bed130dc712f276ac63450201d52969
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dfcdd7f89e401d2c6616be90c76c2fac3fa98fde
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e113cddefa27bbf5a79f72387b8fbd432a61a466
    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/04317a2471c2f637b4c49cbd0e9c0d04a519f570
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d7e64d70a11d988553a08239c810a658e841982
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66cb64a1d2239cd0309f9b5038b05462570a5be1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7bb7670f92bfbd05fc41a8f9a8f358b7ffed65f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97a9063518f198ec0adb2ecb89789de342bb8283
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2346fca5bed130dc712f276ac63450201d52969
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dfcdd7f89e401d2c6616be90c76c2fac3fa98fde
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e113cddefa27bbf5a79f72387b8fbd432a61a466
    Patch