Candidate: CVE-2017-16671
PublicDate: 2017-11-09 00:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16671
 http://downloads.digium.com/pub/security/AST-2017-010.html
 http://downloads.asterisk.org/pub/security/AST-2017-010-13.diff
 https://issues.asterisk.org/jira/browse/ASTERISK-27337
Description:
 A Buffer Overflow issue was discovered in Asterisk Open Source 13 before
 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk
 13.13 before 13.13-cert7. No size checking is done when setting the user
 field for Party B on a CDR. Thus, it is possible for someone to use an
 arbitrarily large string and write past the end of the user field storage
 buffer. NOTE: this is different from CVE-2017-7617, which was only about
 the Party A buffer.
Ubuntu-Description:
 It was discovered that asterisk did not properly check the length of certain
 input. A remote attacker could use this vulnerability to cause a denial of
 service (crash) or potentially execute arbitrary code.
Notes:
Bugs:
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881257
Priority: high
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H [8.8 HIGH]


Patches_asterisk:
 upstream: http://downloads.asterisk.org/pub/security/AST-2017-010-13.diff
upstream_asterisk: released (1:13.18.1~dfsg-1)
precise/esm_asterisk: DNE
trusty_asterisk: ignored (reached end-of-life)
trusty/esm_asterisk: DNE (trusty was not-affected [code not present])
xenial_asterisk: ignored (end of standard support, was needed)
zesty_asterisk: ignored (reached end-of-life)
artful_asterisk: ignored (reached end-of-life)
bionic_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
cosmic_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
disco_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
eoan_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
focal_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
groovy_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
hirsute_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
impish_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
jammy_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)
devel_asterisk: not-affected (1:13.18.3~dfsg-1ubuntu4)