RedHat: RHSA-2021-4424:03 Moderate: openssl security and bug fix update
Summary
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and
Transport Layer Security (TLS) protocols, as well as a full-strength
general-purpose cryptography library.
Security Fix(es):
* openssl: integer overflow in CipherUpdate (CVE-2021-23840)
* openssl: NULL pointer dereference in X509_issuer_and_serial_hash()
(CVE-2021-23841)
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.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
For the update to take effect, all services linked to the OpenSSL library
must be restarted, or the system rebooted.
References
https://access.redhat.com/security/cve/CVE-2021-23840 https://access.redhat.com/security/cve/CVE-2021-23841 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
Package List
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
openssl-1.1.1k-4.el8.src.rpm
aarch64:
openssl-1.1.1k-4.el8.aarch64.rpm
openssl-debuginfo-1.1.1k-4.el8.aarch64.rpm
openssl-debugsource-1.1.1k-4.el8.aarch64.rpm
openssl-devel-1.1.1k-4.el8.aarch64.rpm
openssl-libs-1.1.1k-4.el8.aarch64.rpm
openssl-libs-debuginfo-1.1.1k-4.el8.aarch64.rpm
openssl-perl-1.1.1k-4.el8.aarch64.rpm
ppc64le:
openssl-1.1.1k-4.el8.ppc64le.rpm
openssl-debuginfo-1.1.1k-4.el8.ppc64le.rpm
openssl-debugsource-1.1.1k-4.el8.ppc64le.rpm
openssl-devel-1.1.1k-4.el8.ppc64le.rpm
openssl-libs-1.1.1k-4.el8.ppc64le.rpm
openssl-libs-debuginfo-1.1.1k-4.el8.ppc64le.rpm
openssl-perl-1.1.1k-4.el8.ppc64le.rpm
s390x:
openssl-1.1.1k-4.el8.s390x.rpm
openssl-debuginfo-1.1.1k-4.el8.s390x.rpm
openssl-debugsource-1.1.1k-4.el8.s390x.rpm
openssl-devel-1.1.1k-4.el8.s390x.rpm
openssl-libs-1.1.1k-4.el8.s390x.rpm
openssl-libs-debuginfo-1.1.1k-4.el8.s390x.rpm
openssl-perl-1.1.1k-4.el8.s390x.rpm
x86_64:
openssl-1.1.1k-4.el8.x86_64.rpm
openssl-debuginfo-1.1.1k-4.el8.i686.rpm
openssl-debuginfo-1.1.1k-4.el8.x86_64.rpm
openssl-debugsource-1.1.1k-4.el8.i686.rpm
openssl-debugsource-1.1.1k-4.el8.x86_64.rpm
openssl-devel-1.1.1k-4.el8.i686.rpm
openssl-devel-1.1.1k-4.el8.x86_64.rpm
openssl-libs-1.1.1k-4.el8.i686.rpm
openssl-libs-1.1.1k-4.el8.x86_64.rpm
openssl-libs-debuginfo-1.1.1k-4.el8.i686.rpm
openssl-libs-debuginfo-1.1.1k-4.el8.x86_64.rpm
openssl-perl-1.1.1k-4.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for openssl is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
1908036 - openssl listens on IPv4 "any" socket only not on IPv6
1930310 - CVE-2021-23841 openssl: NULL pointer dereference in X509_issuer_and_serial_hash()
1930324 - CVE-2021-23840 openssl: integer overflow in CipherUpdate
1934534 - Rebase OpenSSL to 1.1.1k
1934600 - DTLS1.0 connections are allowed in DEFAULT crypto-policy [rhel-8]
1939637 - Openssl -dtls option breaks in FIPS mode[rhel8]
1940085 - FIPS_selftest() fails in FIPS mode.
1965362 - In renegotiated handshake openssl sends extensions which client didn't advertise in second ClientHello [rhel-8]