{"id":"CVE-2012-2131","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-2131","generatedAt":"2026-10-27T19:43:55.557Z","title":"Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified other impact, via crafted DER data,…","description":"Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified other impact, via crafted DER data, as demonstrated by an X.509 certificate or an RSA public key.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-2110.","published":"2012-04-24T20:55:03.000Z","lastModified":"2026-06-16T23:41:03.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-189"],"affected":["openssl/openssl"],"epss":{"score":0.16818,"percentile":0.9702,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2012-04-19","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":18756,"kind":"exploit","title":"OpenSSL - ASN1 BIO Memory Corruption","url":"https://www.exploit-db.com/exploits/18756","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/18756.txt","file":"exploits/multiple/dos/18756.txt","published":"2012-04-19","added":"2012-04-19","updated":"2012-04-19","author":"Tavis Ormandy","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2012-2131","OSVDB-81223","CVE-2012-2110"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 16.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://cvs.openssl.org/chngview?cn=22479","source":"secalert@redhat.com"},{"url":"http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673","source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00014.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00015.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00007.html","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=133728068926468&w=2","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=134039053214295&w=2","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/48895","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/48956","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/57353","source":"secalert@redhat.com"},{"url":"http://support.apple.com/kb/HT5784","source":"secalert@redhat.com"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2012/dsa-2454","source":"secalert@redhat.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2012:064","source":"secalert@redhat.com"},{"url":"http://www.openssl.org/news/secadv_20120424.txt","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/04/24/1","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/53212","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id?1026957","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1428-1","source":"secalert@redhat.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/75099","source":"secalert@redhat.com"},{"url":"http://cvs.openssl.org/chngview?cn=22479","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00014.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00015.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00007.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=133728068926468&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=134039053214295&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48895","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48956","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/57353","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.apple.com/kb/HT5784","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2012/dsa-2454","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2012:064","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openssl.org/news/secadv_20120424.txt","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/04/24/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/53212","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026957","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1428-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/75099","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-2131","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}