// For flags

CVE-2019-13050

GnuPG: interaction between the sks-keyserver code and GnuPG allows for a Certificate Spamming Attack which leads to persistent DoS

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

La interacción entre el código sks-keyserver hasta versión 1.2.0 de la red SKS keyserver, y GnuPG hasta la versión 2.2.16, hace arriesgado tener una línea de configuración keyserver de GnuPG que se refiera a un host en la red SKS keyserver. La recuperación de datos de esta red puede causar una denegación de servicio persistente, debido a un Ataque de Spamming de Certificado.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-06-29 CVE Reserved
  • 2019-06-29 CVE Published
  • 2024-06-22 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-295: Improper Certificate Validation
  • CWE-297: Improper Validation of Certificate with Host Mismatch
CAPEC
References (14)
URL Tag Source
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E Mailing List
https://lists.gnupg.org/pipermail/gnupg-announce/2019q3/000439.html Third Party Advisory
https://support.f5.com/csp/article/K08654551 Third Party Advisory
https://support.f5.com/csp/article/K08654551?utm_source=f5support&amp%3Butm_medium=RSS X_refsource_confirm
https://twitter.com/lambdafu/status/1147162583969009664 Third Party Advisory
URL Date SRC
https://gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f 2024-08-04
URL Date SRC
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00039.html 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUK2YRO6QIH64WP2LRA5D4LACTXQPPU4 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CP4ON34YEXEZDZOXXWV43KVGGO6WZLJ5 2023-11-07
https://access.redhat.com/security/cve/CVE-2019-13050 2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1726146 2020-11-04
https://access.redhat.com/articles/4264021 2020-11-04
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Gnupg
Search vendor "Gnupg"
 Gnupg
Search vendor "Gnupg" for product "Gnupg"
 <= 2.2.16
Search vendor "Gnupg" for product "Gnupg" and version " <= 2.2.16"
-
Affected
Sks Keyserver Project
Search vendor "Sks Keyserver Project"
 Sks Keyserver
Search vendor "Sks Keyserver Project" for product "Sks Keyserver"
 <= 1.2.0
Search vendor "Sks Keyserver Project" for product "Sks Keyserver" and version " <= 1.2.0"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 29
Search vendor "Fedoraproject" for product "Fedora" and version "29"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.0
Search vendor "Opensuse" for product "Leap" and version "15.0"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected
F5
Search vendor "F5"
 Traffix Signaling Delivery Controller
Search vendor "F5" for product "Traffix Signaling Delivery Controller"
 >= 5.0.0 <= 5.1.0
Search vendor "F5" for product "Traffix Signaling Delivery Controller" and version " >= 5.0.0 <= 5.1.0"
-
Affected