RHSA-2023:6938 - Security Advisory

Topic

An update for the container-tools:4.0 module is now available for Red Hat Enterprise Linux 8.

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 container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.

Security Fix(es):

• go-yaml: Improve heuristics preventing CPU/memory abuse by parsing malicious or large YAML documents (CVE-2022-3064)
• golang: html/template: improper handling of JavaScript whitespace (CVE-2023-24540)
• net/http, golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding (CVE-2022-41723)
• golang: crypto/tls: large handshake records may cause panics (CVE-2022-41724)
• golang: net/http, mime/multipart: denial of service from excessive resource consumption (CVE-2022-41725)
• golang.org/x/net/html: Cross site scripting (CVE-2023-3978)
• golang: net/http, net/textproto: denial of service from excessive memory allocation (CVE-2023-24534)
• golang: net/http, net/textproto, mime/multipart: denial of service from excessive resource consumption (CVE-2023-24536)
• golang: go/parser: Infinite loop in parsing (CVE-2023-24537)
• golang: html/template: backticks not treated as string delimiters (CVE-2023-24538)
• golang: html/template: improper sanitization of CSS values (CVE-2023-24539)
• runc: Rootless runc makes `/sys/fs/cgroup` writable (CVE-2023-25809)
• runc: volume mount race condition (regression of CVE-2019-19921) (CVE-2023-27561)
• runc: AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration (CVE-2023-28642)
• golang: html/template: improper handling of empty HTML attributes (CVE-2023-29400)
• golang: net/http: insufficient sanitization of Host header (CVE-2023-29406)

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 8.9 Release Notes linked from 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 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 2163037 - CVE-2022-3064 go-yaml: Improve heuristics preventing CPU/memory abuse by parsing malicious or large YAML documents
• BZ - 2165743 - [container-tools:4.0/toolbox] Rebase to 0.0.99.4
• BZ - 2175721 - CVE-2023-27561 runc: volume mount race condition (regression of CVE-2019-19921)
• BZ - 2178358 - CVE-2022-41723 net/http, golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding
• BZ - 2178488 - CVE-2022-41725 golang: net/http, mime/multipart: denial of service from excessive resource consumption
• BZ - 2178492 - CVE-2022-41724 golang: crypto/tls: large handshake records may cause panics
• BZ - 2182883 - CVE-2023-28642 runc: AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration
• BZ - 2182884 - CVE-2023-25809 runc: Rootless runc makes `/sys/fs/cgroup` writable
• BZ - 2184481 - CVE-2023-24538 golang: html/template: backticks not treated as string delimiters
• BZ - 2184482 - CVE-2023-24536 golang: net/http, net/textproto, mime/multipart: denial of service from excessive resource consumption
• BZ - 2184483 - CVE-2023-24534 golang: net/http, net/textproto: denial of service from excessive memory allocation
• BZ - 2184484 - CVE-2023-24537 golang: go/parser: Infinite loop in parsing
• BZ - 2196026 - CVE-2023-24539 golang: html/template: improper sanitization of CSS values
• BZ - 2196027 - CVE-2023-24540 golang: html/template: improper handling of JavaScript whitespace
• BZ - 2196029 - CVE-2023-29400 golang: html/template: improper handling of empty HTML attributes
• BZ - 2222167 - CVE-2023-29406 golang: net/http: insufficient sanitization of Host header
• BZ - 2228689 - CVE-2023-3978 golang.org/x/net/html: Cross site scripting
• BZ - 2231464 - [container-tools:4.0/toolbox] 'init-container' fails when /var/lib/flatpak, /var/lib/systemd/coredump or /var/log/journal on the host are mounted with nodev, noexec or nosuid

CVEs

• CVE-2022-3064
• CVE-2022-41723
• CVE-2022-41724
• CVE-2022-41725
• CVE-2023-3978
• CVE-2023-24534
• CVE-2023-24536
• CVE-2023-24537
• CVE-2023-24538
• CVE-2023-24539
• CVE-2023-24540
• CVE-2023-25809
• CVE-2023-27561
• CVE-2023-28642
• CVE-2023-29400
• CVE-2023-29406

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.9_release_notes/index