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rockyRockylinux Product ErrataRLSA-2021:4409
HistoryNov 09, 2021 - 9:18 a.m.

libgcrypt security and bug fix update

2021-11-0909:18:49
Rockylinux Product Errata
errata.rockylinux.org
25
libgcrypt
security update
bug fix
rocky linux 8
cve
cryptographic algorithms
side-channel attack
cvss score
release notes

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.002

Percentile

61.1%

JSON

An update is available for libgcrypt.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list
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.

OSVersionArchitecturePackageVersionFilename
rocky8aarch64libgcrypt< 1.8.5-6.el8libgcrypt-0:1.8.5-6.el8.aarch64.rpm
rocky8i686libgcrypt< 1.8.5-6.el8libgcrypt-0:1.8.5-6.el8.i686.rpm
rocky8x86_64libgcrypt< 1.8.5-6.el8libgcrypt-0:1.8.5-6.el8.x86_64.rpm
rocky8aarch64libgcrypt-debuginfo< 1.8.5-6.el8libgcrypt-debuginfo-0:1.8.5-6.el8.aarch64.rpm
rocky8i686libgcrypt-debuginfo< 1.8.5-6.el8libgcrypt-debuginfo-0:1.8.5-6.el8.i686.rpm
rocky8x86_64libgcrypt-debuginfo< 1.8.5-6.el8libgcrypt-debuginfo-0:1.8.5-6.el8.x86_64.rpm
rocky8aarch64libgcrypt-debugsource< 1.8.5-6.el8libgcrypt-debugsource-0:1.8.5-6.el8.aarch64.rpm
rocky8i686libgcrypt-debugsource< 1.8.5-6.el8libgcrypt-debugsource-0:1.8.5-6.el8.i686.rpm
rocky8x86_64libgcrypt-debugsource< 1.8.5-6.el8libgcrypt-debugsource-0:1.8.5-6.el8.x86_64.rpm
rocky8aarch64libgcrypt-devel< 1.8.5-6.el8libgcrypt-devel-0:1.8.5-6.el8.aarch64.rpm
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CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.002

Percentile

61.1%

JSON
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