01 Record
CVE-2012-5371
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
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.33% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.5% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2012-11-28 11:00Z13 YR AGO
- Last updated
- 2024-08-06 21:05Z2 YR AGO
- Reserved
- 2012-10-10
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 0154bdc6c12e65c4c478900cf86de90e5a4262045c0c68e3bcb99fc918d0e059
05 Affected products
VendorProductVersionsPlatforms
06 References
- asfws12.files.wordpress.comhttp://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf
- securitytracker.com1027747http://securitytracker.com/id?1027747
- www.osvdb.org87280http://www.osvdb.org/87280
- www.securityfocus.com56484http://www.securityfocus.com/bid/56484
- www.131002.nethttps://www.131002.net/data/talks/appsec12_slides.pdf
- www.ruby-lang.orghttp://www.ruby-lang.org/en/news/2012/11/09/ruby19-hashdos-cve-2012-5371/
- 2012.appsec-forum.chhttp://2012.appsec-forum.ch/conferences/#c17
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=875236
- secunia.com51253http://secunia.com/advisories/51253
- www.ocert.orghttp://www.ocert.org/advisories/ocert-2012-001.html
- www.ubuntu.comUSN-1733-1http://www.ubuntu.com/usn/USN-1733-1
- exchange.xforce.ibmcloud.comruby-hash-function-dos(79993)https://exchange.xforce.ibmcloud.com/vulnerabilities/79993