An issue was discovered in Varnish Cache before 6.0.4 LTS, and 6.1.x and 6.2.x before 6.2.1. An HTTP/1 parsing failure allows a remote attacker to trigger an assert by sending crafted HTTP/1 requests. The assert will cause an automatic restart with a clean cache, which makes it a Denial of Service attack.
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
| Link | Tags |
|---|---|
| https://varnish-cache.org/security/VSV00003.html | vendor advisory |
| https://seclists.org/bugtraq/2019/Sep/5 | third party advisory mailing list |
| https://www.debian.org/security/2019/dsa-4514 | third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00069.html | vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLSF54TDJWJLINIFEW5V5BKDNY5EQRR3/ | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00089.html | vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3OEOCYRU43TWEU2C65F3D6GK64MSWNNK/ | vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DBAQF6UDRSTURGINIMSMLJR4PTDYWA7C/ | vendor advisory |