Bug 1576654

Summary:	nodejs-bl: Numeric arguments passed to bl.append() return uninitialized memory
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ahardin, bleanhar, ccoleman, dedgar, dffrench, drusso, hhorak, jgoulding, jmadigan, jokerman, jorton, jshepherd, lgriffin, mchappel, ngough, piotr1212, pwright, rhel8-maint, rrajasek, trepel, zsvetlik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nodejs-bl 0.9.5, nodejs-bl 1.0.1	Doc Type:	If docs needed, set a value
Doc Text:	It was found that the nodejs-bl append() function did not properly handle numeric argument, resulting in a read buffer overflow. An attacker could use this flaw to disclose Node.js application memory.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 20:03:21 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:	1576655, 1576872, 1577875
Bug Blocks:	1576657

Description Sam Fowler 2018-05-10 04:54:28 UTC

bl before versions 0.9.5 and 1.0.1 are vulnerable to memory exposure.

bl.append(number) in the affected bl versions passes a number to Buffer constructor, appending a chunk of uninitialized memory.


Upstream issue:

https://github.com/rvagg/bl/pull/22


Upstream patch:

https://github.com/rvagg/bl/pull/22/commits/8e1ddb38145ac4556af67d5e18534e8f4bccbf98


External Reference:

https://nodesecurity.io/advisories/596

Comment 1 Sam Fowler 2018-05-10 04:54:52 UTC

Created nodejs-bl tracking bugs for this issue:

Affects: epel-7 [bug 1576655]