USN-2981-1: libarchive vulnerabilities
Ubuntu Security Notice USN-2981-1
17th May, 2016
libarchive vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
libarchive could be made to crash or run programs if it opened a specially
crafted file.
Software description
- 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
cuase 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 version:
- Ubuntu 16.04 LTS:
-
libarchive13
3.1.2-11ubuntu0.16.04.1
- Ubuntu 15.10:
-
libarchive13
3.1.2-11ubuntu0.15.10.1
- Ubuntu 14.04 LTS:
-
libarchive13
3.1.2-7ubuntu2.2
- Ubuntu 12.04 LTS:
-
libarchive12
3.0.3-6ubuntu1.2
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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