7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.054 Low
EPSS
Percentile
92.9%
A flaw was found in HTTP/2. An attacker, using PRIORITY frames to flood the system, could cause excessive CPU usage and starvation of other clients. The largest threat from this vulnerability is to system availability.
Red Hat Quay 3.0 uses Nginx 1.12 from Red Hat Software Collections. It will be updated once a fixed is released for Software Collections. In the meantime users of Quay can disable http/2 support in Nginx by following these instructions:
1. Copy the Nginx configuration from the quay container to the host
$ docker cp 3aadf1421ba3:/quay-registry/conf/nginx/ /mnt/quay/nginx
2. Edit the Nginx configuration, removing http/2 support
$ sed -i 's/http2 //g' /mnt/quay/nginx/nginx.conf
3. Restart Nginx with the new configuration mounted into the container, eg:
$ docker run --restart=always -p 443:8443 -p 80:8080 --sysctl net.core.somaxconn=4096 -v /mnt/quay/config:/conf/stack:Z -v /mnt/quay/storage:/datastorage -v /mnt/quay/nginx:/quay-registry/config/nginx:Z -d quay.io/redhat/quay:v3.0.3
github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
nghttp2.org/blog/2019/08/19/nghttp2-v1-39-2/
nodejs.org/en/blog/vulnerability/aug-2019-security-releases/
nvd.nist.gov/vuln/detail/CVE-2019-9513
www.cve.org/CVERecord?id=CVE-2019-9513
www.nginx.com/blog/nginx-updates-mitigate-august-2019-http-2-vulnerabilities/
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.054 Low
EPSS
Percentile
92.9%