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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel
Redhat
  • Enterprise Linux

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-553.22.1.rt7.363.el8_10 cpe:/a:redhat:enterprise_linux:8::nfv RHSA-2024:7001 2024-09-24T00:00:00Z
kernel-0:4.18.0-553.22.1.el8_10 cpe:/o:redhat:enterprise_linux:8 RHSA-2024:7000 2024-09-24T00:00:00Z
References
Link Providers
https://git.kernel.org/stable/c/04317a2471c2f637b4c49cbd0e9c0d04a519f570 cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/5d7e64d70a11d988553a08239c810a658e841982 cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/66cb64a1d2239cd0309f9b5038b05462570a5be1 cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/7bb7670f92bfbd05fc41a8f9a8f358b7ffed65f4 cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/97a9063518f198ec0adb2ecb89789de342bb8283 cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/d2346fca5bed130dc712f276ac63450201d52969 cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/dfcdd7f89e401d2c6616be90c76c2fac3fa98fde cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/e113cddefa27bbf5a79f72387b8fbd432a61a466 cve-icon cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024071513-CVE-2024-41007-777c@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-41007 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-41007 cve-icon
History

Tue, 24 Sep 2024 11:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:8

Tue, 24 Sep 2024 06:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8::nfv
Vendors & Products Redhat
Redhat enterprise Linux

Thu, 12 Sep 2024 08:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-07-15T08:48:10.174Z

Updated: 2024-09-11T17:34:18.296Z

Reserved: 2024-07-12T12:17:45.610Z

Link: CVE-2024-41007

cve-icon Vulnrichment

Updated: 2024-08-02T04:39:56.161Z

cve-icon NVD

Status : Analyzed

Published: 2024-07-15T09:15:02.803

Modified: 2024-07-19T18:24:59.197

Link: CVE-2024-41007

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-07-15T00:00:00Z

Links: CVE-2024-41007 - Bugzilla