Bug 2353427 (CVE-2025-30258) - CVE-2025-30258 gnupg: verification DoS due to a malicious subkey in the keyring
Summary: CVE-2025-30258 gnupg: verification DoS due to a malicious subkey in the keyring
Keywords:
Status: NEW
Alias: CVE-2025-30258
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2353442 2353441
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-03-19 20:01 UTC by OSIDB Bzimport
Modified: 2025-03-21 16:20 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2025-03-19 20:01:17 UTC 
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."
Comment 2 Jakub Jelen 2025-03-20 08:03:05 UTC 
Given the low severity of this CVE, I do not plan to fix this right now in Fedora nor in RHELs.
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