USN-3225-1: libarchive vulnerabilities
Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 14.04
Description
It was discovered that libarchive incorrectly handled hardlink entries when extracting archives. A remote attacker could possibly use this issue to overwrite arbitrary files. (CVE-2016-5418)
Christian Wressnegger, Alwin Maier, and Fabian Yamaguchi discovered that libarchive incorrectly handled filename lengths when writing ISO9660 archives. A remote attacker could use this issue to cause libarchive to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6250)
Alexander Cherepanov discovered that libarchive incorrectly handled recursive decompressions. A remote attacker could possibly use this issue to cause libarchive to hang, resulting in a denial of service. (CVE-2016-7166)
It was discovered that libarchive incorrectly handled non-printable multibyte characters in filenames. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2016-8687)
It was discovered that libarchive incorrectly handled line sizes when extracting certain archives. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2016-8688)
It was discovered that libarchive incorrectly handled multiple EmptyStream attributes when extracting certain 7zip archives. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2016-8689)
Jakub Jirasek discovered that libarchive incorrectly handled memory when extracting certain archives. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2017-5601)
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Cloud Foundry BOSH stemcells are vulnerable, including:
- 3151.x versions prior to 3151.14
- 3233.x versions prior to 3233.16
- 3263.x versions prior to 3263.22
- 3312.x versions prior to 3312.22
- 3363.x versions prior to 3363.14
- All other stemcells not listed.
- All versions of Cloud Foundry cflinuxfs2 prior to 1.108.0
Mitigation
OSS users are strongly encouraged to follow one of the mitigations below:
- The Cloud Foundry project recommends upgrading the following BOSH stemcells:
- Upgrade 3151.x versions to 3151.14 or later
- Upgrade 3233.x versions to 3233.16 or later
- Upgrade 3263.x versions to 3263.22 or later
- Upgrade 3312.x versions to 3312.22 or later
- Upgrade 3363.x versions to 3363.14 or later
- All other stemcells should be upgraded to the latest version.
- The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 versions 1.108.0 or later.
