CVE-2019-15892

NameCVE-2019-15892
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-4514-1
NVD severityhigh (attack range: remote)
Debian Bugs939333

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
varnish (PTS)jessie (security), jessie4.0.2-1+deb8u1fixed
stretch (security), stretch5.0.0-7+deb9u2fixed
buster6.1.1-1vulnerable
buster (security)6.1.1-1+deb10u1fixed
bullseye6.1.1-2vulnerable
sid6.2.1-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
varnishsource(unstable)6.2.1-1high939333
varnishsourcebuster6.1.1-1+deb10u1highDSA-4514-1
varnishsourcejessie(not affected)
varnishsourcestretch(not affected)

Notes

[stretch] - varnish <not-affected> (Only a security issue in 6.0 and later)
[jessie] - varnish <not-affected> (Only a security issue in 6.0 and later)
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

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