Bug 1652033 (CVE-2018-19214)

Summary:	CVE-2018-19214 nasm: heap-based buffer over-read in expand_mmac_params in asm/preproc.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:	dominik, java-sig-commits, mizdebsk, nickc
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:	2021-10-25 22:20:27 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:	1652034, 1652947, 1652950
Bug Blocks:	1652048

Description Laura Pardo 2018-11-21 13:08:53 UTC

A flaw was found in Netwide Assembler (NASM) 2.14rc15. A heap-based buffer over-read in expand_mmac_params in asm/preproc.c for insufficient input. 


References:
https://bugzilla.nasm.us/show_bug.cgi?id=3392521 

Upstream Patch:
https://repo.or.cz/nasm.git/commit/661f723d39e03ca6eb05d7376a43ca33db478354

Comment 1 Laura Pardo 2018-11-21 13:09:16 UTC

Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 1652034]

Comment 2 Stefan Cornelius 2018-11-23 13:54:30 UTC

Reproducer also triggers the issue covered in bug 1478913.

Comment 3 Stefan Cornelius 2018-11-23 13:54:36 UTC

Statement:

This issue affects the versions of nasm as shipped with Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Enterprise Linux 5 is now in Extended Life Phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.