tranport: TLS host name wildcard matching too lax (syslog-ng syslog-ng)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.37 % · percentile 31 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
syslog-ng is an enhanced log daemo. Prior to version 4.8.2, `tls_wildcard_match()` matches on certificates such as `foo.*.bar` although that is not allowed. It is also possible to pass partial wildcards such as `foo.a*c.bar` which glib matches but should be avoided / invalidated. This issue could have an impact on TLS connections, such as in man-in-the-middle situations. Version 4.8.2 contains a fix for the issue.
Weaknesses (CWE)
- CWE-295 — Improper Certificate Validation
References
- https://github.com/syslog-ng/syslog-ng/security/advisories/GHSA-xr54-gx74-fghg
- https://github.com/syslog-ng/syslog-ng/commit/dadfdbecde5bfe710b0a6ee5699f96926b3f9006
- https://github.com/syslog-ng/syslog-ng/blob/b0ccc8952d333fbc2d97e51fddc0b569a15e7a7d/lib/transport/tls-verifier.c#L78-L110
- https://github.com/syslog-ng/syslog-ng/releases/tag/syslog-ng-4.8.2
- https://lists.debian.org/debian-lts-announce/2025/05/msg00034.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | GitHub_M |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD · security-advisories@github.com (Secondary) |
European references
- ENISA EUVD · EUVD-2024-54457
- GCVE · GCVE-0-2024-47619
CERT-FR advisories
- CERTFR-2026-AVI-0162 — Multiples vulnérabilités dans Juniper Networks Secure Analytics · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0101 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1013 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:oneidentity:syslog-ng:*:*:*:*:*:*:*:*< 4.8.2cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| syslog-ng · syslog-ng | affected < 4.8.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |