VDB
RHSA-2023%3A5769
RHSA-2023%3A5769
PUBLISHED
CVSS 7.5 HIGH
Red Hat Security Advisory: nghttp2 security update
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat:rhel_eus:8.6::crb | nghttp2-debugsource | 0, 0 |
| Red Hat:rhel_eus:8.6::baseos | libnghttp2 | 0, 0 |
| Red Hat:rhel_eus:8.6::crb | nghttp2 | 0, 0 |
| Red Hat:rhel_eus:8.6::crb | libnghttp2-devel | 0, 0 |
| Red Hat:rhel_eus:8.6::baseos | libnghttp2-devel | 0, 0 |
| Red Hat:rhel_eus:8.6::crb | libnghttp2-debuginfo | 0, 0 |
| Red Hat:rhel_eus:8.6::baseos | nghttp2-debugsource | 0, 0 |
| Red Hat:rhel_eus:8.6::baseos | nghttp2 | 0, 0 |
| Red Hat:rhel_eus:8.6::crb | libnghttp2 | 0, 0 |
| Red Hat:rhel_eus:8.6::baseos | nghttp2-debuginfo | 0, 0 |
| Red Hat:rhel_eus:8.6::crb | nghttp2-debuginfo | 0, 0 |
| Red Hat:rhel_eus:8.6::baseos | libnghttp2-debuginfo | 0, 0 |
Exploit Intelligence
- HTTP/2 attack simulation & defense lab - Slowloris, Rapid Reset (CVE-2023-44487), HPACK Bomb attacks with 5 layered defenses. Built in pure Python with raw sockets and h2 library. (github-poc-repo)
- HTTP/2 attack simulation & defense lab - Slowloris, Rapid Reset (CVE-2023-44487), HPACK Bomb attacks with 5 layered defenses. Built in pure Python with raw sockets and h2 library. (github-poc-repo)
- HTTP/2 attack simulation & defense lab - Slowloris, Rapid Reset (CVE-2023-44487), HPACK Bomb attacks with 5 layered defenses. Built in pure Python with raw sockets and h2 library. (github-poc)
- HTTP/2 attack simulation & defense lab - Slowloris, Rapid Reset (CVE-2023-44487), HPACK Bomb attacks with 5 layered defenses. Built in pure Python with raw sockets and h2 library. (github-poc)
- Plan v3 US-6: coredns-style fork fixture for Scanner E2E (CVE-2023-39325) (github-poc-repo)
- Plan v3 US-6: coredns-style fork fixture for Scanner E2E (CVE-2023-39325) (github-poc-repo)
- Plan v3 US-6: coredns-style fork fixture for Scanner E2E (CVE-2023-39325) (github-poc)
- Plan v3 US-6: coredns-style fork fixture for Scanner E2E (CVE-2023-39325) (github-poc)
- Educational environment for LTAT.04.022 Homework 4. (github-poc-repo)
- Educational environment for LTAT.04.022 Homework 4. (github-poc-repo)
…and 145 more exploits
Timeline
- Oct 17, 2023 CVE Published
- Apr 25, 2026 Distribution Patch
- Apr 25, 2026 Distribution Patch
- Apr 25, 2026 Security Advisory
- Apr 25, 2026 Security Advisory
- Apr 30, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2023:5769 advisory
- https://access.redhat.com/security/updates/classification/#important article
- https://access.redhat.com/security/vulnerabilities/RHSB-2023-003 article
- https://bugzilla.redhat.com/show_bug.cgi?id=2242803 report
- https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_5769.json advisory
- https://access.redhat.com/security/cve/CVE-2023-44487 report
- https://www.cve.org/CVERecord?id=CVE-2023-44487 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2023-44487 advisory
- https://github.com/dotnet/announcements/issues/277 article
- https://pkg.go.dev/vuln/GO-2023-2102 advisory
- https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487 article
- https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/ article
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog article