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Arch Linux: 201901-16 Medium: NasM Denial Of Service Advisory

The package nasm before version 2.14.02-1 is vulnerable to denial of service. . Arch Linux Security Advisory ASA-201901-16 ========================================= Severity: Medium Date : 2019-01-24 CVE-ID : CVE-2019-6290 CVE-2019-6291 Package : nasm Type : denial of service Remote : No Link : https://security.archlinux.org/AVG-852 Summary ====== The package nasm before version 2.14.02-1 is vulnerable to denial of service. Resolution ========= Upgrade to 2.14.02-1. # pacman -Syu "nasm> =2.14.02-1" The problems have been fixed upstream in version 2.14.02. Workaround ========= None. Description ========== - CVE-2019-6290 (denial of service) An infinite recursion issue was discovered in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem resulting from infinite recursion in the functions expr, rexp, bexpr and cexpr in certain scenarios involving lots of '{' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file. - CVE-2019-6291 (denial of service) An issue was discovered in the function expr6 in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem caused by the expr6 function making recursive calls to itself in certain scenarios involving lots of '!' or '+' or '-' characters. Remote attackers could leverage this vulnerability to cause a denial- of-service via a crafted asm file. Impact ===== A local attacker is able to cause a denial of service via a specially crafted asm file. References ========= https://security.archlinux.org/CVE-2019-6290 https://security.archlinux.org/CVE-2019-6291 . Ubuntu Security Notice USN-2021-15: nasm package exposed to potential denial of service threat. Immediate upgrade suggested.. Arch Linux, nasm package, denial service, security advisory, medium severity. . Severity: Medium. LinuxSecurity.com Team

Jan 27, 2019 •Medium ArchLinux