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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…
Medium6.8EPSS 27.9%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 25 days later
· 25 days later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 27.9% · top 1.9% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (28)
- 53476 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 49116 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SSRT100930 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- FEDORA-2012-18035 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 51312 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2012:1308 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://cvs.openssl.org/chngview?cn=22538 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2012:1307 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SSRT101108 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- http://support.apple.com/kb/HT5784 (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2013-06-04-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- 49208 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- VU#737740 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- SUSE-SU-2012:0679 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=820686 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://cvs.openssl.org/chngview?cn=22547 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2012:1306 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 50768 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 49324 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- openssl-tls-record-dos(75525) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- SUSE-SU-2012:0678 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.openssl.org/news/secadv_20120510.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1027057 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2012-7939 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.cert.fi/en/reports/2012/vulnerability641549.html (opens in a new tab)x_refsource_MISCx_transferred
- DSA-2475 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- MDVSA-2012:073 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- RHSA-2012:0699 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2012-2333)Record last updated .