Debian Stretch: DLA-2691-1 Moderate: Libgcrypt20 Side-Channel Attack
debian lts
June 24, 2021
An issue has been found in libgcrypt20, a crypto library
Topics Covered
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
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Severity
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Package: libgcrypt20
Version: 1.7.6-2+deb9u4
CVE ID: CVE-2021-33560
Topics Covered
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