Buffer overflow in Openssl

CVE-2014-8176

The dtls1_clear_queues function in ssl/d1_lib.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h frees data structures without considering that application data can arrive between a ChangeCipherSpec message and a Finished message, which allows remote DTLS peers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unexpected application data.

Vulnerability class: Buffer Overflow

EPSS: 0.166 (96.7th percentile) — read the EPSS interpretation.

Affected products

  • Openssl — versions 1.0.0, 1.0.0a, 1.0.0b
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2014-8176?
CVE-2014-8176 is a vulnerability in Openssl, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-06-12.
Is CVE-2014-8176 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.