REDHAT-BUG-2127010
First published: Thu Sep 15 2022(Updated: )
GnuPG can be made to spin on a relatively small input by (for example) crafting a public key with thousands of signatures attached, compressed down to just a few KB; see $URL and the surrounding email threads for more details and test-cases. The reporter has some proposed patches at <a href="https://dev.gnupg.org/D556">https://dev.gnupg.org/D556</a> (and in oss-security / gnupg-devel threads); mostly these flag/reject compressed packets and indeterminate-length packets in contexts where they make no sense and arguably are not within the spec (certificates, keys, detached signatures).
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian GnuPG |
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Reference Links
- https://dev.gnupg.org/D556
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2127013
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2127014
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2127015
- https://dev.gnupg.org/T5993
- https://marc.info/?l=oss-security&m=165696590211434&w=4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2127010#c3
- https://bugzilla.redhat.com/show_bug.cgi?id=2127010
Frequently Asked Questions
What is the severity of REDHAT-BUG-2127010?
The severity of REDHAT-BUG-2127010 is not explicitly defined but may cause performance issues due to GnuPG spinning on crafted inputs.
How do I fix REDHAT-BUG-2127010?
To fix REDHAT-BUG-2127010, apply the proposed patches provided by the vulnerability reporter.
What impact does REDHAT-BUG-2127010 have on GnuPG functionality?
REDHAT-BUG-2127010 can lead to significant performance degradation when processing specially crafted public keys.
Is there a workaround for REDHAT-BUG-2127010?
Currently, there is no official workaround for REDHAT-BUG-2127010.
What versions of GnuPG are affected by REDHAT-BUG-2127010?
REDHAT-BUG-2127010 affects GnuPG software, but specific version details are not provided in the report.
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