USN-2549-1: libarchive vulnerabilities

Packages

libarchive - Library to read/write archive files

Details

It was discovered that the libarchive bsdcpio utility extracted absolute
paths by default without using the --insecure flag, contrary to
expectations. If a user or automated system were tricked into extracting
cpio archives containing absolute paths, a remote attacker may be able to
write to arbitrary files. (CVE-2015-2304)

Fabian Yamaguchi discovered that libarchive incorrectly handled certain
type conversions. A remote attacker could possibly use this issue to cause
libarchive to crash, resulting in a denial of service. This issue only
affected Ubuntu 12.04 LTS. (CVE-2013-0211)

It was discovered that the libarchive bsdcpio utility extracted absolute
paths by default without using the --insecure flag, contrary to
expectations. If a user or automated system were tricked into extracting
cpio archives containing absolute paths, a remote attacker may be able to
write to arbitrary files. (CVE-2015-2304)

Fabian Yamaguchi discovered that libarchive incorrectly handled certain
type conversions. A remote attacker could possibly use this issue to cause
libarchive to crash, resulting in a denial of service. This issue only
affected Ubuntu 12.04 LTS. (CVE-2013-0211)

Update instructions

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

Learn more about how to get the fixes.

Ubuntu Release	Package Version
14.10 utopic	bsdcpio – 3.1.2-9ubuntu0.1
14.10 utopic	libarchive13 – 3.1.2-9ubuntu0.1
14.04 trusty	bsdcpio – 3.1.2-7ubuntu2.1
14.04 trusty	libarchive13 – 3.1.2-7ubuntu2.1
12.04 precise	bsdcpio – 3.0.3-6ubuntu1.1
12.04 precise	libarchive12 – 3.0.3-6ubuntu1.1

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References