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ubuntuUbuntuUSN-4747-1
HistoryFeb 24, 2021 - 12:00 a.m.

GNU Screen vulnerability

2021-02-2400:00:00
ubuntu.com
112

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

9.8 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.015 Low

EPSS

Percentile

86.5%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • screen - terminal multiplexer with VT100/ANSI terminal emulation

Details

Felix Weinmann discovered that GNU Screen incorrectly handled certain
character sequences. A remote attacker could use this issue to cause GNU
Screen to crash, resulting in a denial of service, or possibly execute
arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchscreen< 4.8.0-2ubuntu0.1UNKNOWN
Ubuntu20.10noarchscreen-dbgsym< 4.8.0-2ubuntu0.1UNKNOWN
Ubuntu20.10noarchscreen-udeb< 4.8.0-2ubuntu0.1UNKNOWN
Ubuntu20.04noarchscreen< 4.8.0-1ubuntu0.1UNKNOWN
Ubuntu20.04noarchscreen-dbgsym< 4.8.0-1ubuntu0.1UNKNOWN
Ubuntu20.04noarchscreen-udeb< 4.8.0-1ubuntu0.1UNKNOWN
Ubuntu18.04noarchscreen< 4.6.2-1ubuntu1.1UNKNOWN
Ubuntu18.04noarchscreen-dbgsym< 4.6.2-1ubuntu1.1UNKNOWN
Ubuntu18.04noarchscreen-udeb< 4.6.2-1ubuntu1.1UNKNOWN
Ubuntu16.04noarchscreen< 4.3.1-2ubuntu0.1UNKNOWN
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Related

suse 1
nessus 35
fedora 2
oraclelinux 1
osv 5
openvas 19
ubuntucve 1
centos 1
debian 3
mageia 1
ubuntu 1
amazon 2
redhat 2
cve 1
alpinelinux 1
cbl_mariner 1
prion 1
veracode 1
debiancve 1
redhatcve 1
cloudlinux 1
gentoo 1
rosalinux 1
suse
suse
Security update for screen (important)
2021-02-18 00:00:00
nessus
nessus
EulerOS Virtualization for ARM 64 3.0.6.0 : screen (EulerOS-SA-2021-2008)
2021-06-30 00:00:00
Amazon Linux AMI : screen (ALAS-2021-1492)
2021-04-07 00:00:00
GLSA-202105-11 : GNU Screen: User-assisted execution of arbitrary code
2021-05-27 00:00:00
fedora
fedora
[SECURITY] Fedora 32 Update: screen-4.8.0-5.fc32
2021-03-03 23:27:25
[SECURITY] Fedora 33 Update: screen-4.8.0-5.fc33
2021-03-04 20:11:36
oraclelinux
oraclelinux
screen security update
2021-03-09 00:00:00
osv
osv
CVE-2021-26937
2021-02-09 20:15:14
screen - security update
2021-02-21 00:00:00
screen - security update
2021-02-20 00:00:00
openvas
openvas
Ubuntu: Security Advisory (USN-4747-2)
2022-08-26 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:0492-1)
2021-04-19 00:00:00
Huawei EulerOS: Security Advisory for screen (EulerOS-SA-2021-2008)
2021-07-01 00:00:00
ubuntucve
ubuntucve
CVE-2021-26937
2021-02-09 00:00:00
centos
centos
screen security update
2021-04-14 13:29:09
debian
debian
[SECURITY] [DSA 4861-1] screen security update
2021-02-21 08:31:22
[SECURITY] [DSA 4861-1] screen security update
2021-02-21 08:31:22
[SECURITY] [DLA 2570-1] screen security update
2021-02-19 18:34:16
mageia
mageia
Updated screen packages fix security vulnerability
2021-03-04 19:53:32
ubuntu
ubuntu
GNU Screen vulnerability
2021-02-24 00:00:00
amazon
amazon
Low: screen
2021-04-07 00:18:00
Important: screen
2021-03-25 18:31:00
redhat
redhat
(RHSA-2022:1074) Important: screen security update
2022-03-28 09:00:30
(RHSA-2021:0742) Important: screen security update
2021-03-08 09:16:28
cve
cve
CVE-2021-26937
2021-02-09 20:15:00
alpinelinux
alpinelinux
CVE-2021-26937
2021-02-09 20:15:00
cbl_mariner
cbl_mariner
CVE-2021-26937 affecting package screen 4.8.0-4
2023-09-28 12:35:58
prion
prion
Command injection
2021-02-09 20:15:00
veracode
veracode
Denial Of Service (DoS)
2021-02-11 12:01:53
debiancve
debiancve
CVE-2021-26937
2021-02-09 20:15:00
redhatcve
redhatcve
CVE-2021-26937
2021-02-10 01:03:57
cloudlinux
cloudlinux
Fix of CVE: CVE-2021-26937
2021-04-15 14:32:11
gentoo
gentoo
GNU Screen: User-assisted execution of arbitrary code
2021-05-26 00:00:00
rosalinux
rosalinux
Advisory ROSA-SA-2021-1968
2021-07-02 18:07:47

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

9.8 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.015 Low

EPSS

Percentile

86.5%

JSON
Related for USN-4747-1
suse1nessus35fedora2oraclelinux1osv5openvas19ubuntucve1centos1debian3mageia1ubuntu1amazon2redhat2cve1alpinelinux1cbl_mariner1prion1veracode1debiancve1redhatcve1cloudlinux1gentoo1rosalinux1