CVE-2015-6806
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.14% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 90.4% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2015-09-28 20:00Z11 YR AGO
- Last updated
- 2024-08-06 07:29Z2 YR AGO
- Reserved
- 2015-09-03
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- a36a0a05a872ba24d0deeb9d525343050d02b13c3f5a139d49abda968cba9a27
05 Affected products
06 References
- www.openwall.com[oss-security] 20150904 Re: CVE request: screen stack overflow (deep recursion)http://www.openwall.com/lists/oss-security/2015/09/03/11
- www.openwall.com[oss-security] 20150901 CVE request: screen stack overflow (deep recursion)http://www.openwall.com/lists/oss-security/2015/09/01/1
- git.savannah.gnu.orghttp://git.savannah.gnu.org/cgit/screen.git/commit/?id=b7484c224738247b510ed0d268cd577076958f1b
- www.openwall.com[oss-security] 20150903 AW: Re: CVE request: screen stack overflow (deep recursion)http://www.openwall.com/lists/oss-security/2015/09/03/4
- savannah.gnu.orghttps://savannah.gnu.org/bugs/?45713
- www.debian.orgDSA-3352http://www.debian.org/security/2015/dsa-3352
- usn.ubuntu.comUSN-3996-1https://usn.ubuntu.com/3996-1/
- lists.opensuse.orgopenSUSE-SU-2019:1485http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00001.html
07 Fixed in
Debian 12
- screen Fixed in 4.3.1-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- screen Fixed in 4.3.1-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- screen Fixed in 4.3.1-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- screen Fixed in 4.1.0~20120320gitdb59704-9ubuntu0.1~esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.