CVE-2012-2110

CVE-2012-2110 is a high-severity vulnerability in Redhat Openssl with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 48% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

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.

Frequently asked questions

What is 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.
How severe is CVE-2012-2110?
CVE-2012-2110 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2012-2110 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2110?
CVE-2012-2110 primarily affects Redhat Openssl. In total, 91 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-2110?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-2110 published?
CVE-2012-2110 was published on 2012-04-19 and last updated on 2026-06-16.

References

Affected products (91)

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Threat intelligence

Threat-intel indicators referencing this CVE: