9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.011 Low
EPSS
Percentile
84.2%
The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS.
Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in kernel space.
The following packages have been upgraded to a later upstream version: gnutls (3.6.16). (BZ#1956783)
Security Fix(es):
nettle: Remote crash in RSA decryption via manipulated ciphertext (CVE-2021-3580)
gnutls: Use after free in client key_share extension (CVE-2021-20231)
gnutls: Use after free in client_send_params in lib/ext/pre_shared_key.c (CVE-2021-20232)
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 Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 8 | i686 | gnutls-c++ | <Â 3.6.16-4.el8 | gnutls-c++-3.6.16-4.el8.i686.rpm |
RedHat | 8 | i686 | nettle-debugsource | <Â 3.4.1-7.el8 | nettle-debugsource-3.4.1-7.el8.i686.rpm |
RedHat | 8 | ppc64le | gnutls-devel | <Â 3.6.16-4.el8 | gnutls-devel-3.6.16-4.el8.ppc64le.rpm |
RedHat | 8 | x86_64 | gnutls-devel | <Â 3.6.16-4.el8 | gnutls-devel-3.6.16-4.el8.x86_64.rpm |
RedHat | 8 | x86_64 | nettle-devel | <Â 3.4.1-7.el8 | nettle-devel-3.4.1-7.el8.x86_64.rpm |
RedHat | 8 | aarch64 | nettle-debugsource | <Â 3.4.1-7.el8 | nettle-debugsource-3.4.1-7.el8.aarch64.rpm |
RedHat | 8 | ppc64le | gnutls-dane | <Â 3.6.16-4.el8 | gnutls-dane-3.6.16-4.el8.ppc64le.rpm |
RedHat | 8 | s390x | gnutls-dane | <Â 3.6.16-4.el8 | gnutls-dane-3.6.16-4.el8.s390x.rpm |
RedHat | 8 | i686 | gnutls | <Â 3.6.16-4.el8 | gnutls-3.6.16-4.el8.i686.rpm |
RedHat | 8 | x86_64 | nettle | <Â 3.4.1-7.el8 | nettle-3.4.1-7.el8.x86_64.rpm |
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.011 Low
EPSS
Percentile
84.2%