Bug 1668321 (CVE-2019-6291) - CVE-2019-6291 nasm: Recursive calls in the function expr resulting in a denial of service
Summary: CVE-2019-6291 nasm: Recursive calls in the function expr resulting in a denia...
Status: NEW
Alias: CVE-2019-6291
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20190102,repor...
Keywords: Security
Depends On: 1668322
Blocks: 1668324
TreeView+ depends on / blocked
 
Reported: 2019-01-22 12:45 UTC by Dhananjay Arunesh
Modified: 2019-01-22 12:48 UTC (History)
4 users (show)

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Clone Of:
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Last Closed:


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Description Dhananjay Arunesh 2019-01-22 12:45:59 UTC

An issue was discovered in the function expr6 in eval.c in Netwide Assembler
(NASM) through 2.14.02. There is a stack exhaustion problem caused by the expr6
function making recursive calls to itself in certain scenarios involving lots of
'!' or '+' or '-' characters. Remote attackers could leverage this vulnerability
to cause a denial-of-service via a crafted asm file.


Upstream Issue:

https://bugzilla.nasm.us/show_bug.cgi?id=3392549

Comment 1 Dhananjay Arunesh 2019-01-22 12:46:11 UTC
Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 1668322]


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