CVE-2012-6051
Google CityHash computes hash values without properly restricting the ability to trigger hash...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-6051- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-6051- Updated
- 2026-11-02
EUVDEUVD-2012-5925 No score
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.
- Record
EUVD-2012-5925- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cj23-3rw6-m3cc No score
Google CityHash computes hash values without properly restricting the ability to trigger hash...
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.
- Record
GHSA-cj23-3rw6-m3cc- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-6051 is a medium vulnerability (CVSS 5.0) in Google Cityhash, published November 28, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.61%, the 49th percentile. No source names a fixed version.
References
asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf
131002.net/data/talks/appsec12_slides.pdf
2012.appsec-forum.ch/conferences
code.google.com/p/cityhash/source/browse/trunk/NEWS
nvd.nist.gov/vuln/detail/CVE-2012-6051
github.com/advisories/GHSA-cj23-3rw6-m3cc