GHSA-47xh-qxqv-mgvg

Source
https://github.com/advisories/GHSA-47xh-qxqv-mgvg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-47xh-qxqv-mgvg/GHSA-47xh-qxqv-mgvg.json
Published
2022-12-02T22:24:44Z
Modified
2022-12-02T22:24:44Z
Details

Impact

A request forgery attack can be performed on Varnish Cache servers that have the HTTP/2 protocol turned on. An attacker may introduce characters through the HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This may in turn be used to successfully exploit vulnerabilities in a server behind the Varnish server. -- https://varnish-cache.org/security/VSV00011.html#vsv00011

Patches

This is fixed in Varnish 6.0.11; Varnish 6.0.11 is available in kube-httpcache versions v0.7.1 and later.

Workarounds

See upstream mitigation hints.

References

  • https://varnish-cache.org/security/VSV00011.html#vsv00011
References

Affected packages

Go / github.com/mittwald/kube-httpcache

Affected ranges

Type
SEMVER
Events
Introduced
0The exact introduced commit is unknown
Fixed
0.7.1