Vulnerability in Openssl
CVE-2021-4044
Internally libssl in OpenSSL calls X509_verify_cert() on the client side to verify a certificate supplied by a server. That function may return a negative return value to indicate an internal error (for example out of memory). Such a negat…
EPSS: 0.501 (98.8th percentile) — read the EPSS interpretation.
Affected products
- Openssl — versions Fixed in OpenSSL 3.0.1 (Affected 3.0.0)
Public proof-of-concept exploits
References
- www.openssl.org/news/secadv/20211214.txt (x_refsource_CONFIRM)
- git.openssl.org/gitweb/ (x_refsource_CONFIRM)
- security.netapp.com/advisory/ntap-20211229-0003/ (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2021-4044?
- CVE-2021-4044 is a vulnerability in Openssl. Published 2021-12-14.
- Is CVE-2021-4044 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.