ALPINE-CVE-2019-9516

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2019-9516
Published: 13 Aug 2019, 21:15
Last modified:03 Dec 2025, 22:45

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Aug 2019, 21:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:45
Last Modified
Vulnerability information updated

Description

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•nginx

    < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.16.1-r0 | < 1.14.1-r1 | < 1.14.1-r2

  • alpine•nodejs

    < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0 | < 10.16.3-r0

References (1)