CVE-2011-4913

Published: 04 January 2012

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.

From the Ubuntu security team

Dan Rosenberg discovered flaws in the linux Rose (X.25 PLP) layer used by amateur radio. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root.

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4913
• http://marc.info/?l=linux-netdev&m=130060344616926
• https://usn.ubuntu.com/usn/usn-1167-1
• https://usn.ubuntu.com/usn/usn-1202-1
• https://usn.ubuntu.com/usn/usn-1160-1
• https://usn.ubuntu.com/usn/usn-1141-1
• https://usn.ubuntu.com/usn/usn-1204-1
• https://usn.ubuntu.com/usn/usn-1162-1
• https://usn.ubuntu.com/usn/usn-1212-1
• https://usn.ubuntu.com/usn/usn-1159-1
• https://usn.ubuntu.com/usn/usn-1189-1
• https://usn.ubuntu.com/usn/usn-1187-1
• NVD
• Launchpad
• Debian

Bugs

• https://launchpad.net/bugs/912221