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Red Hat Enterprise Linux 8: RHSA-2020-4490-01 Moderate: gnupg2 DoS Issue

red hat
Calendar Grey November 4, 2020
Dist Redhat Esm H88
Debian has issued a security notification for openssl on Debian 10 with moderate urgency tackling a DoS weakness.
An update for gnupg2 is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and creating digital signatures, compliant with OpenPGP and S/MIME standards.
The following packages have been upgraded to a later upstream version: gnupg2 (2.2.20). (BZ#1663944)
Security Fix(es):
* GnuPG: interaction between the sks-keyserver code and GnuPG allows for a Certificate Spamming Attack which leads to persistent DoS (CVE-2019-13050)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory denial of service security update bug fix Red Hat Enterprise Linux moderate severity gnupg2

References

https://access.redhat.com/security/cve/CVE-2019-13050 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: gnupg2-2.2.20-2.el8.src.rpm
aarch64: gnupg2-2.2.20-2.el8.aarch64.rpm gnupg2-debuginfo-2.2.20-2.el8.aarch64.rpm gnupg2-debugsource-2.2.20-2.el8.aarch64.rpm gnupg2-smime-2.2.20-2.el8.aarch64.rpm gnupg2-smime-debuginfo-2.2.20-2.el8.aarch64.rpm
ppc64le: gnupg2-2.2.20-2.el8.ppc64le.rpm gnupg2-debuginfo-2.2.20-2.el8.ppc64le.rpm gnupg2-debugsource-2.2.20-2.el8.ppc64le.rpm gnupg2-smime-2.2.20-2.el8.ppc64le.rpm gnupg2-smime-debuginfo-2.2.20-2.el8.ppc64le.rpm
s390x: gnupg2-2.2.20-2.el8.s390x.rpm gnupg2-debuginfo-2.2.20-2.el8.s390x.rpm gnupg2-debugsource-2.2.20-2.el8.s390x.rpm gnupg2-smime-2.2.20-2.el8.s390x.rpm gnupg2-smime-debuginfo-2.2.20-2.el8.s390x.rpm
x86_64: gnupg2-2.2.20-2.el8.x86_64.rpm gnupg2-debuginfo-2.2.20-2.el8.x86_64.rpm gnupg2-debugsource-2.2.20-2.el8.x86_64.rpm gnupg2-smime-2.2.20-2.el8.x86_64.rpm gnupg2-smime-debuginfo-2.2.20-2.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Advisory ID: RHSA-2020:4490-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4490
Issue date: 2020-11-03

Topic

An update for gnupg2 is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service security update bug fix Red Hat Enterprise Linux moderate severity gnupg2

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1726146 - CVE-2019-13050 GnuPG: interaction between the sks-keyserver code and GnuPG allows for a Certificate Spamming Attack which leads to persistent DoS

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