certfr_avis - certa-2012-avi-643

CERTA-2012-AVI-643

Vulnerability from certfr_avis

Une vulnérabilité a été corrigée dans Ruby. Elle permet à un attaquant de provoquer un déni de service à distance au moyen de messages JSON spécialement conçus.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Ruby versions antérieures à 1.9.3 patchlevel 327

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2012-5371 (GCVE-0-2012-5371)

Vulnerability from cvelistv5

Published

2012-11-28 11:00

Modified

2024-08-06 21:05

Severity ?

CWE

Summary

Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before r37575 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 against a variant of the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4815.

References

URL

Tags

	http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf	x_refsource_MISC
	http://securitytracker.com/id?1027747	vdb-entry, x_refsource_SECTRACK
	http://www.osvdb.org/87280	vdb-entry, x_refsource_OSVDB
	http://www.securityfocus.com/bid/56484	vdb-entry, x_refsource_BID
	https://www.131002.net/data/talks/appsec12_slides.pdf	x_refsource_MISC
	http://www.ruby-lang.org/en/news/2012/11/09/ruby19-hashdos-cve-2012-5371/	x_refsource_CONFIRM
	http://2012.appsec-forum.ch/conferences/#c17	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=875236	x_refsource_CONFIRM
	http://secunia.com/advisories/51253	third-party-advisory, x_refsource_SECUNIA
	http://www.ocert.org/advisories/ocert-2012-001.html	x_refsource_MISC
	http://www.ubuntu.com/usn/USN-1733-1	vendor-advisory, x_refsource_UBUNTU
	https://exchange.xforce.ibmcloud.com/vulnerabilities/79993	vdb-entry, x_refsource_XF

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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