ELA-444-1 libgcrypt20 security update

weak ElGamal encryption

2021-06-25
Packagelibgcrypt20
Version1.6.3-2+deb8u9
Related CVEs 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 8 jessie, these problems have been fixed in version 1.6.3-2+deb8u9.

We recommend that you upgrade your libgcrypt20 packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.