Critical severity · published Feb 24, 2020
CVE-2020-9366
A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49
9.8
CVSS
2.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Screen · Gnu
before 4.8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9366
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9366
Mailing List
http://www.openwall.com/lists/oss-security/2020/02/25/1
Mailing List
https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html
Third Party Advisory
https://security.gentoo.org/glsa/202003-62
Mailing List
https://www.openwall.com/lists/oss-security/2020/02/06/3
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