CVE-2012-2333
Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified…
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EPSS puts the probability of exploitation in the next 30 days at 28.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.
- CVSS 2.0
- 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 28.15% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- openssl/openssl · redhat/openssl
- Source
- secalert@redhat.com
References
- http://cvs.openssl.org/chngview?cn=22538
- http://cvs.openssl.org/chngview?cn=22547
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081460.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00019.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00020.html
- http://marc.info/?l=bugtraq&m=134919053717161&w=2
- http://marc.info/?l=bugtraq&m=136432043316835&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0699.html
- http://rhn.redhat.com/errata/RHSA-2012-1306.html
- http://rhn.redhat.com/errata/RHSA-2012-1307.html
- http://rhn.redhat.com/errata/RHSA-2012-1308.html
- http://secunia.com/advisories/49116
- http://secunia.com/advisories/49208
- http://secunia.com/advisories/49324
- http://secunia.com/advisories/50768
- http://secunia.com/advisories/51312
- http://support.apple.com/kb/HT5784
- http://www.cert.fi/en/reports/2012/vulnerability641549.html
- http://www.debian.org/security/2012/dsa-2475
- http://www.kb.cert.org/vuls/id/737740US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:073
- http://www.openssl.org/news/secadv_20120510.txt
- http://www.securityfocus.com/bid/53476
- http://www.securitytracker.com/id?1027057
- https://bugzilla.redhat.com/show_bug.cgi?id=820686
- https://exchange.xforce.ibmcloud.com/vulnerabilities/75525
- http://cvs.openssl.org/chngview?cn=22538
- http://cvs.openssl.org/chngview?cn=22547
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.