Bug 483200 (CVE-2012-6051)

Summary:	dev-libs/cityhash: Denial of Service (CVE-2012-6051)
Product:	Gentoo Security	Reporter:	GLSAMaker/CVETool Bot <glsamaker>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED CANTFIX
Severity:	trivial	CC:	patrick
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:	~3 [noglsa]
Package list:		Runtime testing required:	---

Description GLSAMaker/CVETool Bot gentoo-dev

2013-08-31 21:59:11 UTC

CVE-2012-6051 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6051):
  Google CityHash computes hash values without properly restricting the
  ability to trigger hash collisions predictably, which allows
  context-dependent attackers to cause a denial of service (CPU consumption)
  via crafted input to an application that maintains a hash table, as
  demonstrated by a universal multicollision attack.


The bug isn't explicitly mentioned in the cityhash ChangeLog, but I suspect that 1.0.3 is affected and needs to be cleaned.

Comment 1 Yury German Gentoo Infrastructure

2013-12-30 05:52:03 UTC

https://code.google.com/p/cityhash/issues/detail?id=10

As per upstream this will not be fixed.

Comment 2 Chris Reffett (RETIRED) gentoo-dev

2014-06-19 12:31:56 UTC

If upstream won't fix, there isn't much we can do about this, and I wouldn't call this a significant enough issue to warrant complete removal. Closing noglsa.