PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2018-0739

CVE-2018-0739

openssl: Handling of crafted recursive ASN.1 structures can cause a stack overflow and resulting denial of service

Loading…

Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.0

Review impact separately from score.

Published · March 27, 2018

Updated · September 21, 2026

Description

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).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling