What is CVE-2019-20637?

CVE-2019-20637 is a high-severity vulnerability in Varnish-cache Varnish_cache, classified under Improper Removal of Sensitive Information Before Storage or Transfer. CVSS score: 7.5/10. Published 2020-04-08.

How severe is CVE-2019-20637?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Varnish-cache Varnish_cache

CVE-2019-20637

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 s…

EPSS: 0.017 (75.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-212 — Improper Removal of Sensitive Information Before Storage or Transfer

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)

Frequently asked questions

What is CVE-2019-20637?: CVE-2019-20637 is a high-severity vulnerability in Varnish-cache Varnish_cache, classified under Improper Removal of Sensitive Information Before Storage or Transfer. CVSS score: 7.5/10. Published 2020-04-08.
How severe is CVE-2019-20637?: High severity. CVSS v3 base score is 7.5 out of 10.