CVE-2011-4913

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.

• CWE-20

• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
• 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.htmlThird Party Advisory
• http://www.openwall.com/lists/oss-security/2011/12/28/2
• https://bugzilla.redhat.com/show_bug.cgi?id=770777Issue Tracking, VDB Entry
• https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8Exploit, Patch
• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
• 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.htmlThird Party Advisory
• http://www.openwall.com/lists/oss-security/2011/12/28/2
• https://bugzilla.redhat.com/show_bug.cgi?id=770777Issue Tracking, VDB Entry
• https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8Exploit, Patch

Published

Jun 21, 2012

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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