Denial of Service Risk in Varnish Cache by Varnish Software
CVE-2019-15892

7.5HIGH

Key Information:

Vendor

Varnish Cache Project

Status
Varnish Cache
Vendor
CVE Published:
3 September 2019

What is CVE-2019-15892?

A vulnerability was identified in Varnish Cache affecting versions prior to 6.0.4 LTS and 6.1.x and 6.2.x before 6.2.1. This issue can be exploited by sending specially crafted HTTP/1 requests, leading to an assertion failure. The resulting behavior causes the service to automatically restart, clearing the cache and making it susceptible to Denial of Service attacks.

References

https://varnish-cache.org/security/VSV00003.html
x_refsource_MISC
https://seclists.org/bugtraq/2019/Sep/5
mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4514
vendor-advisoryx_refsource_DEBIAN

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.