CVE-2023-41104 json
libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding…
published 2023-08-23 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-45623
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both authentication bypass and information disclosure; however, the exact attack surface will depend on the particular VCL (Varnish Configuration Language) configuration in use.
Patch / fix
- libvmod_digest libvmod_digest 1.0.3, 6.0.11r5
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- libvmod_digest libvmod_digest
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
varnish-cache.org
/security/VSV00012.html
patch, vendor-advisory
-
docs.varnish-software.com
/security/VSV00012/
mitigation, vendor-advisory
-
github.com
/varnish/libvmod-digest/releases/tag/libvmod-digest-1.0.3
release-notes
Sources
- CVE List CVE-2023-41104
- NVD CVE-2023-41104
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