Buffer overflow in Openssl

CVE-2016-2176

The X509_NAME_oneline function in crypto/x509/x509_obj.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to obtain sensitive information from process stack memory or cause a denial of service (buffer over-read) via crafted EBCDIC ASN.1 data.

Vulnerability class: Buffer Overflow

EPSS: 0.228 (97.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

Affected products

  • Openssl — versions 1.0.2, 1.0.2a, 1.0.2b
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-2176?
CVE-2016-2176 is a high-severity vulnerability in Openssl, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.2/10. Published 2016-05-05.
How severe is CVE-2016-2176?
High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2016-2176 known to be exploited?
7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.