CVE-2012-2110
The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in OpenSSL before 0.9.8v, 1.0.0 before 1.0.0i, and 1.0.1 before 1.0.1a does not…
- 7.5HighCVSS base score
- 47.9%Exploitation in 30 daysEPSS · top 1.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in OpenSSL before 0.9.8v, 1.0.0 before 1.0.0i, and 1.0.1 before 1.0.1a does not properly interpret integer data, which allows 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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- OpenSSL - ASN1 BIO Memory Corruption (Exploit-DB entry) (opens in a new tab)
EDB-ID 18756dos, multiplepublished 19 Apr 2012Verified
References tagged exploit1 reference
- 18756 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 15 days later
· 15 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 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 47.9% · top 1.1% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
39
- SUSE-SU-2012:0623 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2012:1149 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SSRT101210 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- FEDORA-2012-18035 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 48899 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20120419 incorrect integer conversions in OpenSSL can result in memory corruption. (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- RHSA-2012:1308 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://cvs.openssl.org/chngview?cn=22434 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDVSA-2012:060 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- RHSA-2012:1307 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 18756 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- RHSA-2012:0518 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-2454 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_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
- USN-1424-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 48895 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 48847 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://cvs.openssl.org/chngview?cn=22439 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2012:1306 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SU-2012:0637 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2012:0522 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- FEDORA-2012-6343 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- HPSBOV02793 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 57353 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 53158 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- HPSBUX02782 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- FEDORA-2012-6395 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.collax.com/produkte/AllinOne-server-for-small-businesses#id2565578 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SSRT100852 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 48942 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.openssl.org/news/secadv_20120419.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://cvs.openssl.org/chngview?cn=22431 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1026957 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 48999 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 81223 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- FEDORA-2012-6403 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://kb.juniper.net/KB27376 (opens in a new tab)x_refsource_CONFIRMx_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)
- EUVD EUVD-2012-2113 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-2110)Record last updated .