Use-after-free vulnerability in the pdf_load_xref function in pdf/pdf-xref.c in MuPDF allows remote attackers to cause a denial of service (crash) via a crafted PDF file.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| http://git.ghostscript.com/?p=mupdf.git%3Bh=fa1936405b6a84e5c9bb440912c23d532772f958 | |
| http://www.debian.org/security/2016/dsa-3655 | vendor advisory |
| http://www.securityfocus.com/bid/92071 | vdb entry third party advisory |
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00007.html | third party advisory vendor advisory |
| http://bugs.ghostscript.com/show_bug.cgi?id=696941 | patch exploit |
| https://security.gentoo.org/glsa/201702-12 | vendor advisory |
| http://www.openwall.com/lists/oss-security/2016/07/21/7 | mailing list exploit |