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Bug 645710 (CVE-2017-17850) - <net-misc/asterisk-13.18.4: Authenticated remote DOS via SIP contact header in PJSIP driver (CVE-2017-17850)
Summary: <net-misc/asterisk-13.18.4: Authenticated remote DOS via SIP contact header i...
Alias: CVE-2017-17850
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [glsa+ cve]
Depends on:
Reported: 2018-01-25 15:55 UTC by GLSAMaker/CVETool Bot
Modified: 2018-11-24 19:46 UTC (History)
2 users (show)

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


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Description GLSAMaker/CVETool Bot gentoo-dev 2018-01-25 15:55:34 UTC
CVE-2017-17850 (
  An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older,
  15.1.4 and older, and 13.18-cert1 and older. A select set of SIP messages
  create a dialog in Asterisk. Those SIP messages must contain a contact
  header. For those messages, if the header was not present and the PJSIP
  channel driver was used, Asterisk would crash. The severity of this
  vulnerability is somewhat mitigated if authentication is enabled. If
  authentication is enabled, a user would have to first be authorized before
  reaching the crash point.
Comment 1 Yury German Gentoo Infrastructure gentoo-dev 2018-11-13 01:02:52 UTC
GLSA Vote: Yes

Added to an existing GLSA Request.
Comment 2 GLSAMaker/CVETool Bot gentoo-dev 2018-11-24 19:46:15 UTC
This issue was resolved and addressed in
 GLSA 201811-11 at
by GLSA coordinator Aaron Bauman (b-man).