VDB
ALPINE-CVE-2019-9517
ALPINE-CVE-2019-9517
PUBLISHED
CVSS 7.5 HIGH
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.
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 |
|---|---|---|
| Alpine:v3.11 | apache2 | 2.4.33-r1, 2.2.16-r0, 2.2.16-r2 |
| Alpine:v3.17 | apache2 | 2.4.23-r2, 2.4.23-r5, 2.4.23-r6 |
| Alpine:v3.24 | nodejs | 0, 0 |
| Alpine:v3.19 | apache2 | 2.2.21-r0, 2.2.22-r1, 2.4.10-r0 |
| Alpine:v3.13 | nodejs | 6.11.5-r0, 4.4.5-r0, 4.4.3-r0 |
| Alpine:v3.14 | apache2 | 2.4.12-r2, 2.2.17-r5, 2.4.12-r1 |
| Alpine:v3.9 | apache2 | 2.4.6-r0, 2.4.38-r2, 2.4.38-r1 |
| Alpine:v3.24 | apache2 | 0, 0 |
| Alpine:v3.14 | nodejs | 8.11.0-r1, 10.13.0-r0, 10.14.0-r0 |
| Alpine:v3.9 | nodejs | 8.10.0-r0, 8.11.0-r0, 8.11.0-r1 |
| Alpine:v3.15 | nodejs | 0, 6.11.3-r0, 6.11.4-r0 |
| Alpine:v3.18 | nodejs | 8.10.0-r0, 0, 0 |
| Alpine:v3.19 | nodejs | 10.13.0-r0, 8.11.3-r1, 8.11.3-r2 |
| Alpine:v3.18 | apache2 | 2.4.39-r0, 0, 2.2.16-r0 |
| Alpine:v3.20 | apache2 | 2.2.17-r2, 2.2.17-r1, 2.2.17-r0 |
| Alpine:v3.10 | nodejs | 6.11.3-r0, 6.10.0-r0, 10.14.0-r0 |
| Alpine:v3.21 | apache2 | 2.4.37-r0, 0, 0 |
| Alpine:v3.23 | nodejs | 0, 0, 0 |
| Alpine:v3.16 | apache2 | 2.2.17-r0, 2.4.39-r0, 2.4.38-r2 |
| Alpine:v3.15 | apache2 | 0, 2.2.17-r2, 0 |
…and 14 more
Timeline
- Aug 13, 2019 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 9, 2026 CVE Updated