CVE-2019-15892
Publication date 3 September 2019
Last updated 24 July 2024
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| varnish | 20.04 LTS focal |
Not affected
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Other references
- 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://seclists.org/bugtraq/2019/Sep/5
- https://www.debian.org/security/2019/dsa-4514
- https://www.cve.org/CVERecord?id=CVE-2019-15892