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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.228 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.228 · newest: 0.228 · change: 0.000
Affected products
- OpenSSL — versions 1.0.2, 1.0.2a, 1.0.2b
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.slackware.com/security/viewer.php (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- h20566.www2.hpe.com/hpsc/doc/public/display
- git.openssl.org/
- packetstormsecurity.com/files/136912/Slackware-Security-Advisory-openssl-Update…
- www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- kc.mcafee.com/corporate/index
- security.gentoo.org/glsa/201612-16 (vendor-advisory)
- www.securitytracker.com/id/1035721 (vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160504… (vendor-advisory)
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.