CVE-2011-4913

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-06-21 · updated 2026-06-16
Weakness: CWE-20

Description

The rose_parse_ccitt function in net/rose/rose_subr.c in the Linux kernel before 2.6.39 does not validate the FAC_CCITT_DEST_NSAP and FAC_CCITT_SRC_NSAP fields, which allows remote attackers to (1) cause a denial of service (integer underflow, heap memory corruption, and panic) via a small length value in data sent to a ROSE socket, or (2) conduct stack-based buffer overflow attacks via a large length value in data sent to a ROSE socket.

Affected products

Linux kernel: through 2.6.38.8; 2.6.38, 2.6.38-rc1, 2.6.38-rc2, 2.6.38-rc3, 2.6.38-rc4, 2.6.38-rc5 (+10)
Novell Suse Linux Enterprise Server: 10.0-sp4

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=be20250c13f88375345ad99950190685eda51eb8
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://www.openwall.com/lists/oss-security/2011/12/28/2
https://bugzilla.redhat.com/show_bug.cgi?id=770777
https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=be20250c13f88375345ad99950190685eda51eb8
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://www.openwall.com/lists/oss-security/2011/12/28/2
https://bugzilla.redhat.com/show_bug.cgi?id=770777
https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8

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