--- title: "CVE-2010-3873\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-2010-3873?format=md keywords: index, follow --- # CVE-2010-3873 Publication date 3 January 2011 Last updated 4 July 2026 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The X.25 implementation in the Linux kernel before 2.6.36.2 does not properly parse facilities, which allows remote attackers to cause a denial of service (heap memory corruption and panic) or possibly have unspecified other impact via malformed (1) X25\_FAC\_CALLING\_AE or (2) X25\_FAC\_CALLED\_AE data, related to net/x25/x25\_facilities.c and net/x25/x25\_in.c, a different vulnerability than CVE-2010-4164. ### From the Ubuntu Security Team Dan Rosenberg discovered that the Linux kernel X.25 implementation incorrectly parsed facilities. A remote attacker could exploit this to crash the kernel, leading to a denial of service. [Read the notes from the security team](https://ubuntu.com/security/CVE-2010-3873?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.37-5.13 | | 10.10 maverick | Fixed 2.6.35-25.43 | | 10.04 LTS lucid | Fixed 2.6.32-28.52 | | 9.10 karmic | Fixed 2.6.31-22.73 | | 8.04 LTS hardy | Fixed 2.6.24-28.86 | | 6.06 LTS dapper | Not in release | | linux-ec2 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Ignored end of life | | 10.04 LTS lucid | Fixed 2.6.32-312.24 | | 9.10 karmic | Fixed 2.6.31-307.27 | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-fsl-imx51 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.31-609.26 | | 9.10 karmic | Fixed 2.6.31-112.30 | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-lts-backport-maverick | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.35-32.68~lucid1 | | 9.10 karmic | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-lts-backport-natty | 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 | 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 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Fixed 2.6.32-414.30 | | 10.04 LTS lucid | Fixed 2.6.32-214.30 | | 9.10 karmic | Ignored end of life | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-source-2.6.15 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not in release | | 9.10 karmic | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Fixed 2.6.15-55.93 | | linux-ti-omap4 | 11.10 oneiric | Not affected | | 11.04 natty | Not affected | | 10.10 maverick | Fixed 2.6.35-903.26 | | 10.04 LTS lucid | Not in release | | 9.10 karmic | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | 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-2010-3873?format=md#patch-details) ## Notes --- ### [kees](https://launchpad.net/~kees) net: ax25: fix information leak to userland harder, CVE-2010-3875 We took the additional step of fixing the original patch since it allowed an SKB leak. ### 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 [a6331d6](https://git.kernel.org/linus/a6331d6f9a4298173b413cf99a40cc86a9d92c37) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3873) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2010-3873) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2010-3873) * [Debian](https://security-tracker.debian.org/tracker/CVE-2010-3873) ### Related Ubuntu Security Notices (USN) + [USN-1073-1](https://usn.ubuntu.com/USN-1073-1) + Linux kernel vulnerabilities + 25 February 2011 + [USN-1072-1](https://usn.ubuntu.com/USN-1072-1) + Linux kernel vulnerabilities + 25 February 2011 + [USN-1164-1](https://usn.ubuntu.com/USN-1164-1) + Linux kernel vulnerabilities (i.MX51) + 6 July 2011 + [USN-1054-1](https://usn.ubuntu.com/USN-1054-1) + Linux kernel vulnerabilities + 1 February 2011 + [USN-1244-1](https://usn.ubuntu.com/USN-1244-1) + Linux kernel (OMAP4) vulnerabilities + 25 October 2011 + [USN-1071-1](https://usn.ubuntu.com/USN-1071-1) + Linux kernel vulnerabilities + 25 February 2011 + [USN-1093-1](https://usn.ubuntu.com/USN-1093-1) + Linux Kernel vulnerabilities (Marvell Dove) + 25 March 2011 ### Other references *