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ubuntuUbuntuUSN-4721-1
HistoryFeb 04, 2021 - 12:00 a.m.

Flatpak vulnerability

2021-02-0400:00:00
ubuntu.com
85

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.1 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

20.7%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • flatpak - Application deployment framework for desktop apps

Details

Simon McVittie discovered that flatpak-portal service allowed sandboxed
applications to execute arbitrary code on the host system (a sandbox
escape). A malicious user could create a Flatpak application that set
environment variables, trusted by the Flatpak “run” command, and use it
to execute arbitrary code outside the sandbox.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchflatpak< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchflatpak-dbgsym< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchflatpak-tests< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchflatpak-tests-dbgsym< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchgir1.2-flatpak-1.0< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchlibflatpak-dev< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchlibflatpak-doc< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchlibflatpak0< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.10noarchlibflatpak0-dbgsym< 1.8.2-1ubuntu0.1UNKNOWN
Ubuntu20.04noarchflatpak< 1.6.5-0ubuntu0.2UNKNOWN
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Related

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cve 1
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osv 3
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redhat 4
gentoo 1
centos 1
oraclelinux 2
suse 1
almalinux 1
alpinelinux 1
veracode 1
archlinux 1
debiancve 1
amazon 1
ubuntucve 1
mageia 1
prion
prion
Code injection
2021-01-14 20:15:00
nessus
nessus
Oracle Linux 8 : flatpak (ELSA-2021-0304)
2021-02-01 00:00:00
Scientific Linux Security Update : flatpak on SL7.x x86_64 (2021:0411)
2021-02-05 00:00:00
EulerOS 2.0 SP8 : flatpak (EulerOS-SA-2021-2294)
2021-08-09 00:00:00
cve
cve
CVE-2021-21261
2021-01-14 20:15:00
openvas
openvas
CentOS: Security Advisory for flatpak (CESA-2021:0411)
2021-02-10 00:00:00
Debian: Security Advisory (DSA-4830-1)
2021-01-16 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:1094-1)
2021-06-09 00:00:00
osv
osv
flatpak vulnerability
2021-02-04 19:45:36
CVE-2021-21261
2021-01-14 20:15:12
flatpak - security update
2021-01-14 00:00:00
redhatcve
redhatcve
CVE-2021-21261
2021-01-18 13:39:36
redhat
redhat
(RHSA-2021:0411) Important: flatpak security update
2021-02-04 09:58:41
(RHSA-2021:0307) Important: flatpak security update
2021-02-01 09:57:38
(RHSA-2021:0304) Important: flatpak security update
2021-02-01 08:46:41
gentoo
gentoo
Flatpak: Sandbox escape
2021-01-25 00:00:00
centos
centos
flatpak security update
2021-02-09 14:32:53
oraclelinux
oraclelinux
flatpak security update
2021-02-01 00:00:00
flatpak security update
2021-02-08 00:00:00
suse
suse
Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk (important)
2021-04-09 00:00:00
almalinux
almalinux
Important: flatpak security update
2021-02-01 08:46:41
alpinelinux
alpinelinux
CVE-2021-21261
2021-01-14 20:15:00
veracode
veracode
Remote Code Execution (RCE)
2021-01-15 20:36:08
archlinux
archlinux
[ASA-202101-40] flatpak: sandbox escape
2021-01-20 00:00:00
debiancve
debiancve
CVE-2021-21261
2021-01-14 20:15:00
amazon
amazon
Important: flatpak
2021-02-17 00:55:00
ubuntucve
ubuntucve
CVE-2021-21261
2021-01-14 00:00:00
mageia
mageia
Updated flatpak packages fix security vulnerabilities
2021-03-18 12:56:09

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.1 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

20.7%

JSON
Related for USN-4721-1
prion1nessus21cve1openvas9osv3redhatcve1redhat4gentoo1centos1oraclelinux2suse1almalinux1alpinelinux1veracode1archlinux1debiancve1amazon1ubuntucve1mageia1