--- title: "CVE-2011-4913\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2011-4913?format=md keywords: index, follow --- # CVE-2011-4913 Publication date 4 January 2012 Last updated 4 July 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## 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. ### 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 Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.38-9.43 | | 10.10 maverick | Fixed 2.6.35-30.52 | | 10.04 LTS lucid | Fixed 2.6.32-32.62 | | 8.04 LTS hardy | Fixed 2.6.24-29.93 | | linux-armadaxp | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | | linux-ec2 | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Ignored end of life | | 10.04 LTS lucid | Fixed 2.6.32-316.30 | | 8.04 LTS hardy | Not in release | | linux-fsl-imx51 | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.31-610.27 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-maverick | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.35-30.54~lucid1 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-natty | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not affected | | 8.04 LTS hardy | Not in release | | linux-lts-backport-oneiric | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not affected | | 8.04 LTS hardy | Not in release | | linux-mvl-dove | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Fixed 2.6.32-417.34 | | 10.04 LTS lucid | Fixed 2.6.32-217.34 | | 8.04 LTS hardy | Not in release | | linux-ti-omap4 | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.38-1209.13 | | 10.10 maverick | Fixed 2.6.35-903.23 | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2011-4913?format=md#patch-details) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | linux | * Introduced by [1da177e](https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2), fixed by [be20250](https://git.kernel.org/linus/be20250c13f88375345ad99950190685eda51eb8) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4913) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-4913) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-4913) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-4913) ### Related Ubuntu Security Notices (USN) + [USN-1204-1](https://usn.ubuntu.com/USN-1204-1) + Linux kernel (i.MX51) vulnerabilities + 13 September 2011 + [USN-1189-1](https://usn.ubuntu.com/USN-1189-1) + Linux kernel vulnerabilities + 19 August 2011 + [USN-1202-1](https://usn.ubuntu.com/USN-1202-1) + Linux kernel (OMAP4) vulnerabilities + 13 September 2011 + [USN-1160-1](https://usn.ubuntu.com/USN-1160-1) + Linux kernel vulnerabilities + 28 June 2011 + [USN-1141-1](https://usn.ubuntu.com/USN-1141-1) + Linux kernel vulnerabilities + 1 June 2011 + [USN-1162-1](https://usn.ubuntu.com/USN-1162-1) + Linux kernel vulnerabilities (Marvell Dove) + 29 June 2011 + [USN-1167-1](https://usn.ubuntu.com/USN-1167-1) + Linux kernel vulnerabilities + 13 July 2011 + [USN-1187-1](https://usn.ubuntu.com/USN-1187-1) + Linux kernel (Maverick backport) vulnerabilities + 9 August 2011 + [USN-1212-1](https://usn.ubuntu.com/USN-1212-1) + Linux kernel (OMAP4) vulnerabilities + 21 September 2011 + [USN-1159-1](https://usn.ubuntu.com/USN-1159-1) + Linux kernel vulnerabilities (Marvell Dove) + 13 July 2011 ### Other references * *