Bug 1559919 (CVE-2018-8883)

Summary:	CVE-2018-8883 nasm: Buffer over-read in parse_line function in asm/parser.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	java-sig-commits, mizdebsk
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 19:58:51 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1559914, 1559923, 1568122, 1568125, 1568126
Bug Blocks:	1559921

Description Laura Pardo 2018-03-23 14:33:18 UTC

Netwide Assembler (NASM) 2.13.02rc2 has a buffer over-read in the parse_line function in asm/parser.c via uncontrolled access to nasm_reg_flags.


References:
https://bugzilla.nasm.us/show_bug.cgi?id=3392447

Comment 1 Laura Pardo 2018-03-23 14:36:24 UTC

Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 1559914]

Comment 3 Pedro Yóssis Silva Barbosa 2018-04-16 19:12:14 UTC

Based on the description, this issue affects nasm shipped by Red Hat Enterprise Linux 5, 6 and 7. However, the reproducer attached in https://bugzilla.nasm.us/show_bug.cgi?id=3392445 did not work here.