CVE-2019-15892 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00069.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00089.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OEOCYRU43TWEU2C65F3D6GK64MSWNNK/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DBAQF6UDRSTURGINIMSMLJR4PTDYWA7C/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KLSF54TDJWJLINIFEW5V5BKDNY5EQRR3/ https://seclists.org/bugtraq/2019/Sep/5 https://varnish-cache.org/security/VSV00003.html https://www.debian.org/security/2019/dsa-4514

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5