Bug 810423 (CVE-2020-18974, CVE-2021-45256, CVE-2021-45257)

Summary:	dev-lang/nasm: multiple vulnerabilities
Product:	Gentoo Security	Reporter:	John Helmert III <ajak>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	CONFIRMED ---
Severity:	minor	CC:	matthew, proxy-maint
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://bugzilla.nasm.us/show_bug.cgi?id=3392568
Whiteboard:	B3 [upstream]
Package list:		Runtime testing required:	---

Description John Helmert III archtester

2021-08-25 19:25:25 UTC

CVE-2020-18974:

Buffer Overflow in Netwide Assembler (NASM) v2.15.xx allows attackers to cause a denial of service via 'crc64i' in the component 'nasmlib/crc64'. This issue is different than CVE-2019-7147.

Upstream issue is currently untouched.

Comment 1 John Helmert III archtester

2021-12-23 08:35:31 UTC

CVE-2021-45256 (https://bugzilla.nasm.us/show_bug.cgi?id=3392789):

A Null Pointer Dereference vulnerability existfs in nasm 2.16rc0 via asm/preproc.c.

CVE-2021-45257 (https://bugzilla.nasm.us/show_bug.cgi?id=3392790):

An infinite loop vulnerability exists in nasm 2.16rc0 via the gpaste_tokens function.

Can't tell if there's been any action taken upstream as their Bugzilla seems to be down.