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
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
AI Score
Confidence
High
EPSS
Percentile
86.7%
Debian LTS Advisory DLA-2570-1 [email protected]
https://www.debian.org/lts/security/ Utkarsh Gupta
February 20, 2021 https://wiki.debian.org/LTS
Package : screen
Version : 4.5.0-6+deb9u1
CVE ID : CVE-2021-26937
Debian Bug : 982435
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.
For Debian 9 stretch, this problem has been fixed in version
4.5.0-6+deb9u1.
We recommend that you upgrade your screen packages.
For the detailed security status of screen please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/screen
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | amd64 | screen | <Â 4.6.2-3+deb10u1 | screen_4.6.2-3+deb10u1_amd64.deb |
Debian | 10 | s390x | screen | <Â 4.6.2-3+deb10u1 | screen_4.6.2-3+deb10u1_s390x.deb |
Debian | 10 | armel | screen-dbgsym | <Â 4.6.2-3+deb10u1 | screen-dbgsym_4.6.2-3+deb10u1_armel.deb |
Debian | 10 | arm64 | screen-dbgsym | <Â 4.6.2-3+deb10u1 | screen-dbgsym_4.6.2-3+deb10u1_arm64.deb |
Debian | 9 | amd64 | screen | <Â 4.5.0-6+deb9u1 | screen_4.5.0-6+deb9u1_amd64.deb |
Debian | 10 | armel | screen | <Â 4.6.2-3+deb10u1 | screen_4.6.2-3+deb10u1_armel.deb |
Debian | 10 | arm64 | screen-udeb | <Â 4.6.2-3+deb10u1 | screen-udeb_4.6.2-3+deb10u1_arm64.deb |
Debian | 10 | i386 | screen | <Â 4.6.2-3+deb10u1 | screen_4.6.2-3+deb10u1_i386.deb |
Debian | 10 | amd64 | screen-udeb | <Â 4.6.2-3+deb10u1 | screen-udeb_4.6.2-3+deb10u1_amd64.deb |
Debian | 10 | mips64el | screen-udeb | <Â 4.6.2-3+deb10u1 | screen-udeb_4.6.2-3+deb10u1_mips64el.deb |
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
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
AI Score
Confidence
High
EPSS
Percentile
86.7%