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cve[email protected]CVE-2021-26937
HistoryFeb 09, 2021 - 8:15 p.m.

CVE-2021-26937

2021-02-0920:15:14
CWE-88
web.nvd.nist.gov
469
7
cve-2021-26937
gnu screen
denial of service
vulnerability
nvd
utf-8
character sequence

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.6 High

AI Score

Confidence

High

0.015 Low

EPSS

Percentile

86.7%

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

Affected configurations

NVD
Node
gnuscreenRange4.8.0
Node
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
Node
fedoraprojectfedoraMatch32
OR
fedoraprojectfedoraMatch33
CPENameOperatorVersion
gnu:screengnu screenle4.8.0

Social References

More

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.6 High

AI Score

Confidence

High

0.015 Low

EPSS

Percentile

86.7%