CVE-2018-0739

CVE-2018-0739: vulnerability in OpenSSL

Constructed ASN.1 types with a recursive definition could exceed the stack

Published · Updated

Follow this CVE+ Monitor OpenSSL+ Monitor openssl

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 19%
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
Affected products
OpenSSL · OpenSSL
Related CVEs — OpenSSL

In the same product, most dangerous first.

CVE-2022-2068CRITICALThe c_rehash script allows command injectionEPSS 96.4%CVE-2022-3786HIGHX.509 Email Address Variable Length Buffer OverflowEPSS 92.5%CVE-2022-3602HIGHX.509 Email Address 4-byte Buffer OverflowEPSS 90.8%CVE-2021-3711—SM2 Decryption Buffer OverflowEPSS 87.8%CVE-2022-1292CRITICALThe c_rehash script allows command injectionEPSS 82.6%CVE-2025-15467HIGHStack buffer overflow in CMS (Auth)EnvelopedData parsingEPSS 74.8%