CVE-2016-3706
Published: 10 June 2016
Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka glibc or libc6) allows remote attackers to cause a denial of service (crash) via vectors involving hostent conversion. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4458.
From the Ubuntu Security Team
Michael Petlan discovered an unbounded stack allocation in the getaddrinfo() function of the GNU C Library. An attacker could use this to cause a denial of service.
Notes
Author | Note |
---|---|
sbeattie | other versions of fixes in glibc bug report reverted in Ubuntu 12.04 LTS due to breaking IPv6 name resolution |
Priority
Status
Package | Release | Status |
---|---|---|
eglibc Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
precise |
Ignored
(end of life)
|
|
trusty |
Released
(2.19-0ubuntu6.10)
|
|
upstream |
Needs triage
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
glibc Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(2.24-0ubuntu1)
|
bionic |
Not vulnerable
(2.24-0ubuntu1)
|
|
cosmic |
Not vulnerable
(2.24-0ubuntu1)
|
|
disco |
Not vulnerable
(2.24-0ubuntu1)
|
|
eoan |
Not vulnerable
(2.24-0ubuntu1)
|
|
focal |
Not vulnerable
(2.24-0ubuntu1)
|
|
groovy |
Not vulnerable
(2.24-0ubuntu1)
|
|
hirsute |
Not vulnerable
(2.24-0ubuntu1)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
wily |
Ignored
(end of life)
|
|
xenial |
Released
(2.23-0ubuntu6)
|
|
yakkety |
Not vulnerable
(2.24-0ubuntu1)
|
|
zesty |
Not vulnerable
(2.24-0ubuntu1)
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4ab2ab03d4351914ee53248dc5aef4a8c88ff8b9 upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1a8a7c12950a0026a3c406a7cb1608f96aa1460e |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |