CVE-2018-0739
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).
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-0739
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-0739.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201804-2
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.1.0.h-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 1.18.2-1 |
| debian | bullseye | fixed | 1.18.2-1 |
| debian | forky | fixed | 1.18.2-1 |
| debian | sid | fixed | 1.18.2-1 |
| debian | trixie | fixed | 1.18.2-1 |
References
Verify integrity in audit chain (admin only). AS-IS.