CVE-2013-2128

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-06-07 · updated 2026-06-16
Weakness: CWE-400

Description

The tcp_read_sock function in net/ipv4/tcp.c in the Linux kernel before 2.6.34 does not properly manage skb consumption, which allows local users to cause a denial of service (system crash) via a crafted splice system call for a TCP socket.

Affected products

Linux kernel: before 2.6.34 — fixed in 2.6.34

How to fix

Upgrade to a fixed version: Linux kernel 2.6.34. Check the vendor advisory for mitigations.

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=baff42ab1494528907bf4d5870359e31711746ae
http://rhn.redhat.com/errata/RHSA-2013-1051.html
http://www.openwall.com/lists/oss-security/2013/05/29/11
https://bugzilla.redhat.com/show_bug.cgi?id=968484
https://github.com/torvalds/linux/commit/baff42ab1494528907bf4d5870359e31711746ae
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=baff42ab1494528907bf4d5870359e31711746ae
http://rhn.redhat.com/errata/RHSA-2013-1051.html
http://www.openwall.com/lists/oss-security/2013/05/29/11
https://bugzilla.redhat.com/show_bug.cgi?id=968484
https://github.com/torvalds/linux/commit/baff42ab1494528907bf4d5870359e31711746ae

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