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CVE-2021-25630

HIGH
7.8
CVSS Score
Published: February 23, 2021 at 03:33 PM UTC
Updated: June 17, 2026 at 03:42 AM UTC
3 products affected across 3 vendorsOnlineCollabora OnlineLibreOffice Online

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

Description

"loolforkit" is a privileged program that is supposed to be run by a special, non-privileged "lool" user. Before doing anything else "loolforkit" checks, if it was invoked by the "lool" user, and refuses to run with privileges, if it's not the case. In the vulnerable version of "loolforkit" this check was wrong, so a normal user could start "loolforkit" and eventually get local root privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Online· Collaboraoffice
95%
4.2.0 ≤ v < 4.2.136.4.0 ≤ v < 6.4.3
Affected range stops below 4.2.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4.3, so it looks safe — our inference, not a vendor statement
Collabora Online· Collabora Productivity
60%
Collabora Online 4.2 ≤ v < 4.2.13Collabora Online 6.4 ≤ v < 6.4.34.26.4
Affected range stops below 4.2.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4.3, so it looks safe — our inference, not a vendor statement
LibreOffice Online· Document
60%
v ≤ 7.0.1.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/CollaboraOnline/online/security/advisories/GHSA-49w3-gr3w-m68v
x_refsource_MISCMailing ListThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2021/01/18/3

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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