Bug 1732714 (CVE-2019-14248)

Summary:	CVE-2019-14248 nasm: NULL pointer dereference in asm/pragma.c leading to Segmentation fault
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	contribs, dominik, igor.raits, java-sig-commits, mizdebsk, nickc, pbonzini
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:	2019-07-26 13:18:19 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:	1732715
Bug Blocks:	1732718

Description Marian Rehak 2019-07-24 08:03:30 UTC

In libnasm.a in Netwide Assembler (NASM) 2.14.xx, asm/pragma.c allows a NULL pointer dereference in process_pragma, search_pragma_list, and nasm_set_limit when "%pragma limit" is mishandled.

Upstream Issue:

https://bugzilla.nasm.us/show_bug.cgi?id=3392576

Comment 1 Marian Rehak 2019-07-24 08:03:41 UTC

Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 1732715]

Comment 2 Riccardo Schirone 2019-07-26 11:27:03 UTC

"%pragma limit" was introduced in NASM 2.14 with commit https://repo.or.cz/nasm.git/commit/987dc9c9dbe36601789aae4552a7c0ceb1ca0852 .

Comment 3 Riccardo Schirone 2019-07-26 11:29:07 UTC

Statement:

This issue did not affect the versions of nasm as shipped with Red Hat Enterprise Linux 5, 6, 7, and 8 as they did not include support for the pragma limit feature.

Comment 4 Product Security DevOps Team 2019-07-26 13:18:19 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-14248