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Bug 699870 (CVE-2019-18277) - <net-proxy/haproxy-2.0.6: HTTP request smuggling issue with transfer-encoding header containing an obfuscated "chunked" value (CVE-2019-18277)
Summary: <net-proxy/haproxy-2.0.6: HTTP request smuggling issue with transfer-encoding...
Alias: CVE-2019-18277
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B4 [noglsa cve]
Depends on: CVE-2019-19330
  Show dependency tree
Reported: 2019-11-11 18:35 UTC by GLSAMaker/CVETool Bot
Modified: 2020-04-01 19:33 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description GLSAMaker/CVETool Bot gentoo-dev 2019-11-11 18:35:05 UTC
CVE-2019-18277 (
  A flaw was found in haproxy before version 2.0.6. In legacy mode, messages
  featuring a transfer-encoding header missing the "chunked" value was not
  being correctly rejected. The impact was limited but if combined with
  "http-reuse always", it could be used as an help to construct a content
  smuggling attack against a vulnerable component employing a lenient parser
  which would ignore the content-length header as soon as it sees a
  transfer-encoding one, without even parsing it.
Comment 1 Sam James archtester gentoo-dev Security 2020-03-19 01:08:06 UTC
@maintainer(s), please advise if you are ready for stabilisation or call for stabilisation yourself.