CVE-2014-9420

Published: 25 December 2014

The rock_continue function in fs/isofs/rock.c in the Linux kernel through 3.18.1 does not restrict the number of Rock Ridge continuation entries, which allows local users to cause a denial of service (infinite loop, and system crash or hang) via a crafted iso9660 image.

From the Ubuntu Security Team

Prasad J Pandit reported a flaw in the rock_continue function of the Linux kernel's ISO 9660 CDROM file system. A local user could exploit this flaw to cause a denial of service (system crash or hang).

Notes

android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.04 preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9420
• https://github.com/torvalds/linux/commit/f54e18f1b831c92f6512d2eedb224cd63d607d3d
• https://bugzilla.redhat.com/show_bug.cgi?id=1175235
• http://www.openwall.com/lists/oss-security/2014/12/25/4
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f54e18f1b831c92f6512d2eedb224cd63d607d3d
• https://ubuntu.com/security/notices/USN-2490-1
• https://ubuntu.com/security/notices/USN-2491-1
• https://ubuntu.com/security/notices/USN-2492-1
• https://ubuntu.com/security/notices/USN-2493-1
• https://ubuntu.com/security/notices/USN-2515-1
• https://ubuntu.com/security/notices/USN-2516-1
• https://ubuntu.com/security/notices/USN-2517-1
• https://ubuntu.com/security/notices/USN-2518-1
• NVD
• Launchpad
• Debian

Bugs

• https://launchpad.net/bugs/1407947