USN-2981-1: libarchive vulnerabilities

Releases

• Ubuntu 16.04 ESM
• Ubuntu 15.10
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• libarchive - Library to read/write archive files

Details

It was discovered that libarchive incorrectly handled certain entry-size
values in ZIP archives. A remote attacker could use this issue to cause
libarchive to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 15.10
and Ubuntu 16.04 LTS. (CVE-2016-1541)

It was discovered that libarchive incorrectly handled memory when
processing certain tar files. A remote attacker could use this issue to
cause libarchive to crash, resulting in a denial of service. (CVE number
pending)

Update instructions

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

Ubuntu 16.04

• libarchive13 - 3.1.2-11ubuntu0.16.04.1

Ubuntu 15.10

• libarchive13 - 3.1.2-11ubuntu0.15.10.1

Ubuntu 14.04

• libarchive13 - 3.1.2-7ubuntu2.2

Ubuntu 12.04

• libarchive12 - 3.0.3-6ubuntu1.2

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

References

• CVE-2016-1541