CVE-2025-30258
2.7
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L
Summary
In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| GnuPG | GnuPG | 0 < 2.5.5 | affected |
Weaknesses
- CWE-754: CWE-754 Improper Check for Unusual or Exceptional Conditions
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html
- https://dev.gnupg.org/T7527
- https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158
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