CVE-2021-3693

Publication date 23 August 2021

Last updated 17 July 2025

Ubuntu priority

Cvss 3 Severity Score

Description

LedgerSMB does not check the origin of HTML fragments merged into the browser's DOM. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ledgersmb	25.04 plucky	Fixed 1.6.33+ds-2.2ubuntu0.25.04.1
	24.10 oracular	Ignored end of life, was needed
	24.04 LTS noble	Fixed 1.6.33+ds-2.1ubuntu0.1
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 1.6.33+ds-1ubuntu0.1
	21.10 impish	Ignored end of life
	21.04 hirsute	Fixed 1.6.9+ds-2ubuntu0.1
	20.04 LTS focal	Fixed 1.6.9+ds-1ubuntu0.1
	18.04 LTS bionic	Fixed 1.4.42+ds-1ubuntu0.1~esm1
	16.04 LTS xenial	Fixed 1.3.46-1ubuntu0.1~esm1
	14.04 LTS trusty	Not in release

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Notes

john-breton

Jammy and onward lack the regression fix for this CVE.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ledgersmb	Upstream: fda7180 Upstream: b388c92

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H