CVE-2019-15892
First published: Tue Sep 03 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/varnish | 6.1.1-1+deb10u3 6.1.1-1+deb10u4 6.5.1-1+deb11u3 7.1.1-1.1 | |
| Varnish-software Varnish Cache | >=6.0.0<6.0.4 | |
| Varnish Cache Project Varnish Cache | >=6.1.0<=6.1.1 | |
| Varnish Cache Project Varnish Cache | >=6.2.0<6.2.1 | |
| Debian Debian Linux | =10.0 |
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Reference Links
- https://varnish-cache.org/security/VSV00003.html
- https://github.com/varnishcache/varnish-cache/commit/1cb778f6f69737109e8c070a74b8e95b78f46d13
- https://github.com/varnishcache/varnish-cache/commit/0f0e51e9871ed1bd1236378f8b0dea0d33df4e9e
- https://github.com/varnishcache/varnish-cache/commit/72df38fa8bfc0f5ca4a75d3e32657e8e590d85ab
- https://github.com/varnishcache/varnish-cache/commit/dd47e658a0de9d12c433a4a01fb43ea4fe4d3a41
- https://github.com/varnishcache/varnish-cache/commit/34717183beda3803e3d54c9826a1a9f026ca2505
- https://github.com/varnishcache/varnish-cache/commit/ec3997a59a93cbc13a3cba22dfe0b4c4710a8f65
- https://github.com/varnishcache/varnish-cache/commit/af13de03eaa3d04f60ada52ed3235d545b8d3973
- https://github.com/varnishcache/varnish-cache/commit/6da64a47beff44ecdb45c82b033811f2d19819af
- https://security-tracker.debian.org/tracker/CVE-2019-15892
- 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://www.debian.org/security/2019/dsa-4514
Frequently Asked Questions
What is CVE-2019-15892?
CVE-2019-15892 is a vulnerability in Varnish Cache that allows a remote attacker to trigger an assert by sending crafted HTTP/1 requests, leading to a Denial of Service.
What is the severity of CVE-2019-15892?
The severity of CVE-2019-15892 is high, with a severity score of 7.5.
Which versions of Varnish Cache are affected by CVE-2019-15892?
Varnish Cache versions before 6.0.4 LTS and 6.1.x and 6.2.x before 6.2.1 are affected by CVE-2019-15892.
How can I fix CVE-2019-15892?
To fix CVE-2019-15892, it is recommended to update Varnish Cache to version 6.0.4 LTS or 6.2.1, depending on the affected version.
Where can I find more information about CVE-2019-15892?
More information about CVE-2019-15892 can be found at the following references: [1](https://varnish-cache.org/security/VSV00003.html), [2](https://github.com/varnishcache/varnish-cache/commit/1cb778f6f69737109e8c070a74b8e95b78f46d13), [3](https://github.com/varnishcache/varnish-cache/commit/0f0e51e9871ed1bd1236378f8b0dea0d33df4e9e).
- collector/security-tracker-debian
- agent/weakness
- agent/severity
- agent/references
- agent/author
- agent/type
- agent/tags
- agent/event
- agent/description
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/varnish-software
- canonical/varnish-software varnish cache
- version/varnish-software varnish cache/6.0.0
- vendor/varnish cache project
- canonical/varnish cache project varnish cache
- version/varnish cache project varnish cache/6.1.0
- version/varnish cache project varnish cache/6.1.1
- version/varnish cache project varnish cache/6.2.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0