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GoogleOSV:RLSA-2021:4409HistoryNov 09, 2021 - 9:18 a.m.
Moderate: libgcrypt security and bug fix update
2021-11-0909:18:49
Google
osv.dev
12
libgcrypt
cryptographic algorithms
elgamal encryption
exponent blinding
side-channel attack
cve-2021-33560
cvss score
rocky linux 8.5.
EPSS
0.002
Percentile
61.1%
The libgcrypt library provides general-purpose implementations of various cryptographic algorithms.
Security Fix(es):
- libgcrypt: mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm (CVE-2021-33560)
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 Rocky Linux 8.5 Release Notes linked from the References section.
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