CVE-2015-6806: Buffer Overflow
First published: Mon Sep 28 2015(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Gnu Gnu Screen | <=4.3.1 | |
| ubuntu/screen | <4.1.0~20120320 | 4.1.0~20120320 |
| ubuntu/screen | <4.3.1-2 | 4.3.1-2 |
| debian/screen | 4.8.0-6 4.9.0-4 4.9.1-1 |
Remedy
http://git.savannah.gnu.org/cgit/screen.git/commit/?id=c336a32a1dcd445e6b83827f83531d4c6414e2cd
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Reference Links
- 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/
- https://launchpad.net/bugs/cve/CVE-2015-6806
- https://www.openwall.com/lists/oss-security/2015/09/01/1
- https://security-tracker.debian.org/tracker/CVE-2015-6806
- https://ubuntu.com/security/notices/USN-3996-1
- https://www.cve.org/CVERecord?id=CVE-2015-6806
- https://nvd.nist.gov/vuln/detail/CVE-2015-6806
- http://git.savannah.gnu.org/cgit/screen.git/commit/?id=c336a32a1dcd445e6b83827f83531d4c6414e2cd
- https://ubuntu.com/security/CVE-2015-6806
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