Severity
Medium
Vendor
PNG
Versions Affected
- Ubuntu 14.04
Description
Qixue Xiao discovered that libpng incorrectly handled certain time values. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause libpng to crash, leading to a denial of service.
It was discovered that libpng incorrectly handled certain small bit-depth values. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or execute code with the privileges of the user invoking the program.
The Cloud Foundry project released a BOSH stemcell version 3144 that has the patched version of the Linux kernel. A new Cloud Foundry rootfs was also released, cflinuxfs2 v.1.19.0, that has the patches.
Affected Products and Versions
Severity is medium unless otherwise noted.
- All versions of Cloud Foundry BOSH stemcells prior to 3143 are vulnerable.
- All versions of Cloud Foundry cflinuxfs2 prior to v.1.19.0.
Mitigation
Users of affected versions should apply the following mitigation:
- The Cloud Foundry project recommends that Cloud Foundry deployments run with BOSH stemcells 3137 or later versions and cflinuxfs2 v.1.18.0 or later versions.
Credit
Qixue Xiao
