Important: Network Observability security update

Topic

An update for network-observability-console-plugin-container, network-observability-ebpf-agent-container, network-observability-flowlogs-pipeline-container, network-observability-operator-bundle-container, and network-observability-operator-container is now available for NETWORK-OBSERVABILITY-1.4.0-RHEL-9.

Red Hat Product Security has rated this update as having a security impact of Important. 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

Security Fix(es):

• golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487) (CVE-2023-39325)
• HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
• golang: net/http: insufficient sanitization of Host header (CVE-2023-29406)
• 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

• Network Observability (NETOBSERV) 1 for RHEL 9 x86_64
• Network Observability (NETOBSERV) for ARM 64 1 for RHEL 9 aarch64
• Network Observability (NETOBSERV) for IBM Power, little endian 1 for RHEL 9 ppc64le
• Network Observability (NETOBSERV) for IBM Z and LinuxONE 1 for RHEL 9 s390x

Fixes

• BZ - 2222167 - CVE-2023-29406 golang: net/http: insufficient sanitization of Host header
• 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
• BZ - 2242803 - CVE-2023-44487 HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)
• BZ - 2243296 - CVE-2023-39325 golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487)
• NETOBSERV-926 - Connection tracking + Kafka might generate incorrect counters
• NETOBSERV-1344 - New "Inner" flows are excluded from metrics

CVEs

• CVE-2023-4527
• CVE-2023-4806
• CVE-2023-4813
• CVE-2023-4911
• CVE-2023-29406
• CVE-2023-29409
• CVE-2023-38545
• CVE-2023-38546
• CVE-2023-39318
• CVE-2023-39319
• CVE-2023-39321
• CVE-2023-39322
• CVE-2023-39325
• CVE-2023-44487

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/security/vulnerabilities/RHSB-2023-003