RHSA-2023:7762 - Security Advisory

Topic

An update for skopeo is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files.

Security Fix(es):

• golang: crypto/tls: slow verification of certificate chains containing large RSA keys (CVE-2023-29409)
• golang: html/template: improper handling of HTML-like comments within script contexts (CVE-2023-39318)
• golang: html/template: improper handling of special tags within script contexts (CVE-2023-39319)
• golang: crypto/tls: panic when processing post-handshake message on QUIC connections (CVE-2023-39321)
• golang: crypto/tls: lack of a limit on buffered post-handshake (CVE-2023-39322)

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.

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

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.4 x86_64
• Red Hat Enterprise Linux Server - AUS 9.6 x86_64
• Red Hat Enterprise Linux Server - AUS 9.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.4 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.4 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.4 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x

Fixes

• BZ - 2228743 - CVE-2023-29409 golang: crypto/tls: slow verification of certificate chains containing large RSA keys
• BZ - 2237773 - CVE-2023-39319 golang: html/template: improper handling of special tags within script contexts
• BZ - 2237776 - CVE-2023-39318 golang: html/template: improper handling of HTML-like comments within script contexts
• BZ - 2237777 - CVE-2023-39321 golang: crypto/tls: panic when processing post-handshake message on QUIC connections
• BZ - 2237778 - CVE-2023-39322 golang: crypto/tls: lack of a limit on buffered post-handshake

CVEs

• CVE-2023-29409
• CVE-2023-39318
• CVE-2023-39319
• CVE-2023-39321
• CVE-2023-39322

References

• https://access.redhat.com/security/updates/classification/#moderate