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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 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.

Published:Apr 19, 2012

Last Modified:Apr 11, 2025

EPS:Apr 19, 2012

EPSS Score:0.05888

CVSS Score:7.5

Affected Products

Vendor

Product

Action

Vendor

Openssl

Product

Openssl

Openssl

Openssl

Vendor

Redhat

Product

Enterprise Linux

Redhat

Enterprise Linux

Vendor

Redhat

Product

Jboss Enterprise Application Platform

Redhat

Jboss Enterprise Application Platform

Vendor

Redhat

Product

Jboss Enterprise Web Server

Redhat

Jboss Enterprise Web Server

Vendor

Redhat

Product

Openssl

Redhat

Openssl

Vendor

Redhat

Product

Rhel Els

Redhat

Rhel Els

Vendor

Redhat

Product

Rhel Eus

Redhat

Rhel Eus

Vendor

Redhat

Product

Rhel Mission Critical

Redhat

Rhel Mission Critical

Exploits

http://archives.neohapsis.com/archives/fulldisclosure/2012-04/0209.html http://archives.neohapsis.com/archives/fulldisclosure/2012-04/0209.html https://www.exploit-db.com/exploits/18756

Common Weakness Enumeration

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-681 Incorrect Conversion between Numeric Types

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-10 Buffer Overflow via Environment Variables

CAPEC-100 Overflow Buffers

CAPEC-123 Buffer Manipulation

CAPEC-14 Client-side Injection-induced Buffer Overflow

CAPEC-24 Filter Failure through Buffer Overflow

CAPEC-42 MIME Conversion

CAPEC-44 Overflow Binary Resource File

CAPEC-45 Buffer Overflow via Symbolic Links

CAPEC-46 Overflow Variables and Tags

CAPEC-47 Buffer Overflow via Parameter Expansion

CAPEC-8 Buffer Overflow in an API Call

CAPEC-9 Buffer Overflow in Local Command-Line Utilities

Related CVEs

CVE-2026-75803 (CVSS 9.1) — Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without ve…

CVE-2026-63075 (CVSS 7.5) — Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets whi…

CVE-2026-63072 (CVSS 7.5) — Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key s…

CVE-2026-54874 (CVSS 7.5) — Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to b…

CVE-2026-14457 (CVSS 7.5) — Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the p…

CVE-2026-63076 (CVSS 7.5) — Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parame…

CVE-2026-63074 (CVSS 5.9) — Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) s…

CVE-2026-63073 (CVSS 9.8) — Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directl…

CVE-2026-18798 (CVSS 7.5) — Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for i…

CVE-2026-14456 (CVSS 7.5) — Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unkn…

References

http://archives.neohapsis.com/archives/fulldisclosure/2012-04/0209.html

http://cvs.openssl.org/chngview?cn=22431

http://cvs.openssl.org/chngview?cn=22434

http://cvs.openssl.org/chngview?cn=22439

http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-April/079149.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-April/079299.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080176.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00007.html

http://marc.info/?l=bugtraq&m=133728068926468&w=2

http://marc.info/?l=bugtraq&m=133951357207000&w=2

http://marc.info/?l=bugtraq&m=134039053214295&w=2

http://osvdb.org/81223

http://rhn.redhat.com/errata/RHSA-2012-0518.html

http://rhn.redhat.com/errata/RHSA-2012-0522.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/48847

http://secunia.com/advisories/48895

http://secunia.com/advisories/48899

http://secunia.com/advisories/48942

http://secunia.com/advisories/48999

http://secunia.com/advisories/57353

http://support.apple.com/kb/HT5784

http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564

http://www.collax.com/produkte/AllinOne-server-for-small-businesses#id2565578

http://www.debian.org/security/2012/dsa-2454

http://www.exploit-db.com/exploits/18756

http://www.mandriva.com/security/advisories?name=MDVSA-2012:060

http://www.openssl.org/news/secadv_20120419.txt

http://www.securityfocus.com/bid/53158

http://www.securitytracker.com/id?1026957

http://www.ubuntu.com/usn/USN-1424-1

https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862

https://kb.juniper.net/KB27376

http://archives.neohapsis.com/archives/fulldisclosure/2012-04/0209.html

http://cvs.openssl.org/chngview?cn=22431

http://cvs.openssl.org/chngview?cn=22434

http://cvs.openssl.org/chngview?cn=22439

http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-April/079149.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-April/079299.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080176.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00007.html

http://marc.info/?l=bugtraq&m=133728068926468&w=2

http://marc.info/?l=bugtraq&m=133951357207000&w=2

http://marc.info/?l=bugtraq&m=134039053214295&w=2

http://osvdb.org/81223

http://rhn.redhat.com/errata/RHSA-2012-0518.html

http://rhn.redhat.com/errata/RHSA-2012-0522.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/48847

http://secunia.com/advisories/48895

http://secunia.com/advisories/48899

http://secunia.com/advisories/48942

http://secunia.com/advisories/48999

http://secunia.com/advisories/57353

http://support.apple.com/kb/HT5784

http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564

http://www.collax.com/produkte/AllinOne-server-for-small-businesses#id2565578

http://www.debian.org/security/2012/dsa-2454

http://www.exploit-db.com/exploits/18756

http://www.mandriva.com/security/advisories?name=MDVSA-2012:060

http://www.openssl.org/news/secadv_20120419.txt

http://www.securityfocus.com/bid/53158

http://www.securitytracker.com/id?1026957

http://www.ubuntu.com/usn/USN-1424-1

https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862

https://kb.juniper.net/KB27376

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High