CVE-2013-1819

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the ability to mount an XFS filesystem containing a metadata inode with an invalid extent map.

From the Ubuntu Security Team

A failure to validate block numbers was discovered in the Linux kernel's implementation of the XFS filesystem. A local user can cause a denial of service (system crash) if they can mount, or cause to be mounted a corrupted or special crafted XFS filesystem.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux	14.04 LTS trusty	Not affected
	13.10 saucy	Not affected
	13.04 raring	Not affected
	12.10 quantal	Ignored end of life, was needed
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Ignored end of life
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Ignored end of life
linux-2.6	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-armadaxp	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Fixed 3.5.0-1622.30
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-ec2	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not in release
linux-flo	14.04 LTS trusty	Ignored end of life, was needed
	13.10 saucy	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-fsl-imx51	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	10.04 LTS lucid	Ignored end of life
	8.04 LTS hardy	Not in release
linux-goldfish	14.04 LTS trusty	Ignored end of life, was needed
	13.10 saucy	Ignored
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-grouper	14.04 LTS trusty	Not in release
	13.10 saucy	Ignored
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-linaro-omap	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Ignored end of life
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Ignored end of life
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-linaro-shared	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Ignored end of life
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Ignored end of life
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-linaro-vexpress	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Ignored end of life
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Ignored end of life
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-lts-backport-maverick	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	10.04 LTS lucid	Ignored end of life
	8.04 LTS hardy	Not in release
linux-lts-backport-oneiric	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	10.04 LTS lucid	Ignored end of life
	8.04 LTS hardy	Not in release
linux-lts-quantal	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-lts-raring	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not affected
	11.10 oneiric	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
linux-lts-trusty	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not in release
linux-maguro	14.04 LTS trusty	Not in release
	13.10 saucy	Ignored
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-mako	14.04 LTS trusty	Ignored end of life, was needed
	13.10 saucy	Ignored
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-manta	14.04 LTS trusty	Ignored end of life, was needed
	13.10 saucy	Ignored
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-mvl-dove	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	10.04 LTS lucid	Ignored end of life
	8.04 LTS hardy	Not in release
linux-qcm-msm	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	13.04 raring	Not in release
	12.10 quantal	Ignored end of life
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Ignored end of life
	10.04 LTS lucid	Ignored end of life
	8.04 LTS hardy	Not in release
linux-ti-omap4	14.04 LTS trusty	Not in release
	13.10 saucy	Ignored
	13.04 raring	Fixed 3.5.0-233.49
	12.10 quantal	Fixed 3.5.0-233.49
	12.04 LTS precise	Ignored end of life
	11.10 oneiric	Ignored end of life
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release

Notes

henrix

This CVE has minor impact as it requires root privileges to mount a corrupted image. Also, it is too risky to backport the fix to older kernels (Precise, in this case).

jjohansen

precise_linux and precise_linux-lts-quantal ignored (was in USN-1968-1/3.2.0-54.82 reverted minor priority CVE with high risk of regression in backport) precise_linux-armadaxp ignored due to high risk of regression in backport

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
linux	Introduced by 74f75a0, fixed by eb17861

References

Related Ubuntu Security Notices (USN)

USN-1968-1
Linux kernel vulnerabilities
27 September 2013

USN-1969-1
Linux kernel (OMAP4) vulnerabilities
27 September 2013

USN-1973-1
Linux kernel (OMAP4) vulnerabilities
27 September 2013

USN-1970-1
Linux kernel (Quantal HWE) vulnerabilities
27 September 2013

USN-1975-1
Linux kernel (OMAP4) vulnerabilities
27 September 2013