Bug 1559913 (CVE-2018-8882)

Summary:	CVE-2018-8882 nasm: Stack buffer underflow in function ieee_shr at source file asm/float.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 19:58:46 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, 1559915, 1559923, 1568106, 1568107
Bug Blocks:	1559921

Description Laura Pardo 2018-03-23 14:27:14 UTC

Netwide Assembler (NASM) 2.13.02rc2 has a stack-based buffer under-read in the function ieee_shr in asm/float.c via a large shift value.

References:
https://bugzilla.nasm.us/show_bug.cgi?id=3392445

Comment 1 Laura Pardo 2018-03-23 14:27:46 UTC

Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 1559914]

Comment 4 Pedro Yóssis Silva Barbosa 2018-04-16 18:49:03 UTC

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