- -------------------------------------------------------------------------
Debian LTS Advisory DLA-2691-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
June 25, 2021                                 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : libgcrypt20
Version        : 1.7.6-2+deb9u4
CVE ID         : CVE-2021-33560


An issue has been found in libgcrypt20, a crypto library.
Mishandling of ElGamal encryption results in a possible side-channel 
attack and an interoperability problem with keys not generated by 
GnuPG/libgcrypt.


For Debian 9 stretch, this problem has been fixed in version
1.7.6-2+deb9u4.

We recommend that you upgrade your libgcrypt20 packages.

For the detailed security status of libgcrypt20 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libgcrypt20

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

Debian LTS: DLA-2691-1: libgcrypt20 security update

June 24, 2021
An issue has been found in libgcrypt20, a crypto library

Summary

An issue has been found in libgcrypt20, a crypto library.
Mishandling of ElGamal encryption results in a possible side-channel
attack and an interoperability problem with keys not generated by
GnuPG/libgcrypt.


For Debian 9 stretch, this problem has been fixed in version
1.7.6-2+deb9u4.

We recommend that you upgrade your libgcrypt20 packages.

For the detailed security status of libgcrypt20 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libgcrypt20

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS



Severity
Package : libgcrypt20
Version : 1.7.6-2+deb9u4
CVE ID : CVE-2021-33560

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