CVE-2012-0839

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-02-08 · updated 2026-06-16
Weakness: CWE-20

Description

OCaml 3.12.1 and earlier computes hash values without 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.

Affected products

Inria Ocaml: through 3.12.1; 1.07, 2.02, 2.04, 2.99-alpha, 3.00, 3.01 (+14)

References

http://openwall.com/lists/oss-security/2012/02/07/1
http://openwall.com/lists/oss-security/2012/02/07/2
http://secunia.com/advisories/47853
http://www.mail-archive.com/caml-list%40inria.fr/msg01477.html
http://www.mail-archive.com/caml-list%40inria.fr/msg01478.html
http://www.nruns.com/_downloads/advisory28122011.pdf
http://www.ocert.org/advisories/ocert-2011-003.html
http://openwall.com/lists/oss-security/2012/02/07/1
http://openwall.com/lists/oss-security/2012/02/07/2
http://secunia.com/advisories/47853
http://www.mail-archive.com/caml-list%40inria.fr/msg01477.html
http://www.mail-archive.com/caml-list%40inria.fr/msg01478.html

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