Vulnerability CVE-2015-6806


Published: 2015-09-28   Modified: 2015-09-29

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.

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
GNU -> Gnu screen 

 References:
http://git.savannah.gnu.org/cgit/screen.git/commit/?id=b7484c224738247b510ed0d268cd577076958f1b
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00001.html
http://www.debian.org/security/2015/dsa-3352
http://www.openwall.com/lists/oss-security/2015/09/01/1
http://www.openwall.com/lists/oss-security/2015/09/03/11
http://www.openwall.com/lists/oss-security/2015/09/03/4
https://savannah.gnu.org/bugs/?45713
https://usn.ubuntu.com/3996-1/

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