Updated nghttp2 packages fix security vulnerabilities
Publication date: 28 Sep 2019Modification date: 28 Sep 2019
Type: security
Affected Mageia releases : 6 , 7
CVE: CVE-2019-9511 , CVE-2019-9513
Description
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)
References
SRPMS
6/core
- nghttp2-1.9.2-1.1.mga6
7/core
- nghttp2-1.38.0-1.1.mga7