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CVE-2020-9366

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Date: February 24, 2020

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.

Language: C

Severity Score

Related Resources (8)

https://security.alpinelinux.org/vuln/CVE-2020-9366
https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html
https://www.openwall.com/lists/oss-security/2020/02/06/3
https://nvd.nist.gov/vuln/detail/CVE-2020-9366
https://security-tracker.debian.org/tracker/CVE-2020-9366
https://security.gentoo.org/glsa/202003-62
http://www.openwall.com/lists/oss-security/2020/02/25/1
https://www.mend.io/vulnerability-database/CVE-2020-9366

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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