CVE-2015-6806

Published: Sep 28, 2015Modified: May 6, 2026

5.0

Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability: 10.0 / Impact: 2.9

Source: NVD

Description

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.

Affected (1)

Products: Gnu: Gnu Screen

Gnu

1 product

Gnu Screen

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Gnu Gnu Screen	Up to 4.3.1

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (16)

http://git.savannah.gnu.org/cgit/screen.git/commit/?id=b7484c224738247b510ed0d268cd577076958f1b

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00001.html

Source: cve@mitre.org

http://www.debian.org/security/2015/dsa-3352

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2015/09/01/1

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2015/09/03/11

Source: cve@mitre.org

Exploit

http://www.openwall.com/lists/oss-security/2015/09/03/4

Source: cve@mitre.org

https://savannah.gnu.org/bugs/?45713

Source: cve@mitre.org

ExploitVendor Advisory

https://usn.ubuntu.com/3996-1/

Source: cve@mitre.org

http://git.savannah.gnu.org/cgit/screen.git/commit/?id=b7484c224738247b510ed0d268cd577076958f1b