Bug 1209496 – CVE-2015-8855 nodejs-semver: npm Regular Expression Denial of Service during package versions parsing

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Bug 1209496 - (CVE-2015-8855) CVE-2015-8855 nodejs-semver: npm Regular Expression Denial of Service during package versions parsing

Summary:	CVE-2015-8855 nodejs-semver: npm Regular Expression Denial of Service during ...

Status:	CLOSED WONTFIX

Aliases:	CVE-2015-8855

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20150403,repor...
Keywords:	Security

Depends On:	1209499 1209498
Blocks:	1209497
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Reported:	2015-04-07 09:39 EDT by Vasyl Kaigorodov
Modified:	2016-04-22 04:00 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:	npm 2.7.5, semver 4.3.2
Doc Type:	Bug Fix
Doc Text:	A denial of service flaw was found in the way semver, the semantic version comparison library for Node.js, parsed certain package versions. A remote attacker could use a specially crafted version string that, when processed, would lead to excessive CPU consumption.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-04-30 04:58:53 EDT
Type:	---
Regression:	---
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Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Vasyl Kaigorodov 2015-04-07 09:39:24 EDT

semver is vulnerable to regular expression denial of service (ReDoS) when extremely long version strings are parsed:

https://nodesecurity.io/advisories/semver_redos

Upstream fix:
https://github.com/npm/npm/commit/0dc68757cffd5397c280bc71365d106523a5a052

Comment 1 Vasyl Kaigorodov 2015-04-07 09:41:53 EDT

Created nodejs-semver tracking bugs for this issue:

Affects: fedora-all [bug 1209498]
Affects: epel-all [bug 1209499]

Comment 3 Ján Rusnačko 2015-04-08 04:27:06 EDT

External References:

https://nodesecurity.io/advisories/semver_redos

Comment 5 Andrej Nemec 2016-04-22 04:00:13 EDT

CVE assignment:

http://seclists.org/oss-sec/2016/q2/122

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