VDB
CVE-2019-20637
CVE-2019-20637
PUBLISHED
An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or VCL-related temporary headers.
EPSS 0.48% · 65.4th percentile
Risk Scores
EPSS Score
0.48%
65.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | varnish | 0, 5.2.1-1, 5.0.0-7.1 |
| Ubuntu:20.04:LTS | varnish | 6.2.1-2, 0, 6.1.1-1 |
Exploit Intelligence
Timeline
- Apr 8, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-20637 third-party-advisory
- http://varnish-cache.org/security/VSV00004.html#vsv00004 third-party-advisory
- https://github.com/varnishcache/varnish-cache/commit/bd7b3d6d47ccbb5e1747126f8e2a297f38e56b8c third-party-advisory
- https://ubuntu.com/security/notices/USN-5474-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20637 third-party-advisory