A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "ghostscript-dbg": "9.50~dfsg-5ubuntu4.1", "ghostscript-doc": "9.50~dfsg-5ubuntu4.1", "ghostscript-x": "9.50~dfsg-5ubuntu4.1", "libgs9": "9.50~dfsg-5ubuntu4.1", "libgs-dev": "9.50~dfsg-5ubuntu4.1", "libgs9-common": "9.50~dfsg-5ubuntu4.1", "ghostscript": "9.50~dfsg-5ubuntu4.1" } ] }