Arch Linux Security Advisory ASA-201801-29 ========================================== Severity: High Date : 2018-01-30 CVE-ID : CVE-2017-17858 Package : libmupdf Type : arbitrary code execution Remote : No Link : https://security.archlinux.org/AVG-599 Summary ======= The package libmupdf before version 1.12.0-2 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 1.12.0-2. # pacman -Syu "libmupdf>=1.12.0-2" The problem has been fixed upstream but no release is available yet. Workaround ========== None. Description =========== Heap-based buffer overflow in the ensure_solid_xref function in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 allows an attacker to potentially execute arbitrary code via a crafted PDF file, because xref subsection object numbers are unrestricted. Impact ====== An attacker is able to execute arbitrary code on the affected host by tricking the user to open or process a maliciously crafted PDF document. References ========== https://git.ghostscript.com/?p=mupdf.git;a=commitdiff;h=55c3f68d638ac1263a38... https://bugs.ghostscript.com/show_bug.cgi?id=698819 https://github.com/mzet-/Security-Advisories/blob/master/mzet-adv-2017-01.md https://security.archlinux.org/CVE-2017-17858