CVE-2015-6806
Published: 28 September 2015
The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape sequence with a large repeat count value.
From the Ubuntu Security Team
It was discovered that GNU screen mishandled certain crafted input. An attacker could use this vulnerability to cause a denial of service.
Priority
Status
Package | Release | Status |
---|---|---|
screen Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.3.1-2)
|
bionic |
Not vulnerable
(4.3.1-2)
|
|
cosmic |
Not vulnerable
(4.3.1-2)
|
|
disco |
Not vulnerable
(4.3.1-2)
|
|
trusty |
Released
(4.1.0~20120320gitdb59704-9ubuntu0.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Released
(4.3.1-2)
|
|
vivid |
Ignored
(end of life)
|
|
wily |
Not vulnerable
(4.3.1-2)
|
|
xenial |
Not vulnerable
(4.3.1-2)
|
|
yakkety |
Not vulnerable
(4.3.1-2)
|
|
zesty |
Not vulnerable
(4.3.1-2)
|
|
precise |
Ignored
(end of life)
|
|
Patches: upstream: http://git.savannah.gnu.org/cgit/screen.git/commit/?id=c336a32a1dcd445e6b83827f83531d4c6414e2cd |