Vulnerability Details : CVE-2020-9366
A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2020-9366
- cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-9366
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-9366
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-9366
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-9366
-
http://www.openwall.com/lists/oss-security/2020/02/25/1
oss-security - Re: Re: GNU screen "out of bounds access when setting w_xtermosc after OSC 49"Mailing List;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2020/02/06/3
oss-security - GNU screen "out of bounds access when setting w_xtermosc after OSC 49"Mailing List;Patch;Release Notes
-
https://security.gentoo.org/glsa/202003-62
GNU Screen: Buffer overflow (GLSA 202003-62) — Gentoo securityThird Party Advisory
-
https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html
[screen-devel] GNU Screen v.4.8.0Mailing List;Patch;Release Notes;Vendor Advisory
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