MGASA-2019-0291: nghttp2 Mageia
Vulnerability summary
MGASA-2019-0291 is a vulnerability in nghttp2 Mageia with no CVSS score yet.
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 2 · Downstream 0Timeline
- 28-09-2019PublishedVulnerability first disclosed.
- 16-04-2026Last modifiedVulnerability information updated.
Description
Updated nghttp2 packages fix security vulnerabilities The updated packages fix security vulnerabilities: Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both. (CVE-2019-9511) Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU. (CVE-2019-9513)
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: not stated in public data.
Mageia2 products
- nghttp2< 1.9.2-1.1.mga6
- nghttp2< 1.38.0-1.1.mga7
1 vendor · 2 products