Ubuntu 14.10: USN-2456-1 Critical Cpio Denial Of Service Issue

ubuntu

January 8, 2015

The GNU cpio program could be made to crash or run programs if itopened a specially crafted file or received specially crafted input.

Summary

The GNU cpio program could be made to crash or run programs if it

opened a specially crafted file or received specially crafted input.

Software Description:

- cpio: a program to manage archives of files

Details:

Michal Zalewski discovered an out of bounds write issue in the

process_copy_in function of GNU cpio. An attacker could specially

craft a cpio archive that could create a denial of service or possibly

execute arbitrary code. (CVE-2014-9112)

Jakob Lell discovered a heap-based buffer overflow in the rmt_read__

function of GNU cpio's rmt client functionality. An attacker

controlling a remote rmt server could use this to cause a denial of

service or possibly execute arbitrary code. This issue only affected

Ubuntu 10.04 LTS. (CVE-2010-0624)

Topics Covered

security advisory denial of service buffer overflow cpio ubuntu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.10:
  cpio                            2.11+dfsg-2ubuntu1.1

Ubuntu 14.04 LTS:
  cpio                            2.11+dfsg-1ubuntu1.1

Ubuntu 12.04 LTS:
  cpio                            2.11-7ubuntu3.1

Ubuntu 10.04 LTS:
  cpio                            2.10-1ubuntu2.1

In general, a standard system update will make all the necessary changes.