Security
Security
A vulnerability in Libgcrypt could allow a remote attacker to extract ElGamal private key information.
| Package | dev-libs/libgcrypt on all architectures |
|---|---|
| Affected versions | < 1.5.4 |
| Unaffected versions | >= 1.5.4 |
Libgcrypt is a general purpose cryptographic library derived out of GnuPG.
A vulnerability in the implementation of ElGamal decryption procedures of Libgcrypt leaks information to various side-channels.
A physical side-channel attack allows a remote attacker to fully extract decryption keys during the decryption of a chosen ciphertext.
There is no known workaround at this time.
All Libgcrypt users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libgcrypt-1.5.4"
Release date
August 29, 2014
Latest revision
August 29, 2014: 1
Severity
normal
Exploitable
remote
Bugzilla entries