CVE-2019-13050

Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack.

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

2.52% chance of exploitation in the next 30 days, 85th percentile

Published

2019-06-29

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f

Security advisories

• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00039.html
• https://lists.gnupg.org/pipermail/gnupg-announce/2019q3/000439.html
• https://support.f5.com/csp/article/K08654551
• https://twitter.com/lambdafu/status/1147162583969009664

References

• CVE Record
• NVD entry