CVE catalog
CVE-2019-9518
trafficserver: CVE-2019-9518
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 25.45% · Oct 25, 2026
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | trafficserver | bookworm | 9.2.5+ds-0+deb12u4 | fixed |
| Debian | trafficserver | bookworm-security | 9.2.5+ds-0+deb12u4 | fixed |
| Alpine | nodejs | 3.10 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.11 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.12 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.13 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.14 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.15 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.16 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.17 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.18 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.19 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.20 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.21 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.22 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.23 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.24 | 10.16.3-r0 | fixed |
| Alpine | nodejs | 3.9 | 10.16.3-r0 | fixed |
| Ubuntu | netty | pro | 1:4.1.7-4 | vulnerable |
| Ubuntu | netty | pro | 1:4.1.7-4ubuntu0.1~esm1 | vulnerable |
| Ubuntu | netty | pro | 1:4.1.7-4ubuntu0.1 | vulnerable |
| Ubuntu | netty | pro | 1:4.1.7-4ubuntu0.1+esm1 | fixed |
| Ubuntu | trafficserver | 18.04 | 7.0.0-5 | vulnerable |
| Ubuntu | trafficserver | 18.04 | 7.1.2+ds-2 | vulnerable |
| Ubuntu | trafficserver | 18.04 | 7.1.2+ds-2build1 | vulnerable |
| Ubuntu | trafficserver | 18.04 | 7.1.2+ds-3 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | trafficserver | source | bookworm | 8.0.5+ds-1 | not yet assigned | Not reported | [935314] |
| Alpine | nodejs | apk | 3.10 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.11 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.12 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.13 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.14 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.15 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.16 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.17 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.18 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.19 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.20 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.21 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.22 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.23 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.24 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Alpine | nodejs | apk | 3.9 | 10.16.3-r0 | Not reported | ALPINE-CVE-2019-9518 | Not reported |
| Ubuntu | netty | deb | pro | 1:4.1.7-4ubuntu0.1+esm1 | Not reported | UBUNTU-CVE-2019-9518 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [trafficserver]Unknown
Details (4)
9.2.5+ds-0+deb12u4· amd64 · bookwormFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· arm64 · bookwormFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· amd64 · bookworm-securityFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· arm64 · bookworm-securityFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
- [trafficserver-dev]Unknown
Source package: [trafficserver]
Details (4)
9.2.5+ds-0+deb12u4· amd64 · bookwormFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· arm64 · bookwormFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· amd64 · bookworm-securityFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· arm64 · bookworm-securityFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
- [trafficserver-experimental-plugins]Unknown
Source package: [trafficserver]
Details (4)
9.2.5+ds-0+deb12u4· amd64 · bookwormFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· arm64 · bookwormFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· amd64 · bookworm-securityFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
9.2.5+ds-0+deb12u4· arm64 · bookworm-securityFixed · Fixed:
8.0.5+ds-1dsa · trafficserver · debian · bookworm; dsa · trafficserver · debian · 12
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2019_2925.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-9518]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-9518]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-9518]
- [https://security-tracker.debian.org/tracker/CVE-2019-9518]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-9518.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-0770.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]