CVE-2019-6991

Publication date 28 January 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A classic Stack-based buffer overflow exists in the zmLoadUser() function in zm_user.cpp of the zmu binary in ZoneMinder through 1.32.3, allowing an unauthenticated attacker to execute code via a long username.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
zoneminder	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Fixed 1.32.3-2
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Fixed 1.29.0+dfsg-1ubuntu2+esm1
	14.04 LTS trusty	Not in release

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Notes

seth-arnold

the patch I saw looked like it introduced a memory leak

ccdm94

commit 6d7660cd fixes the memory leak

Patch details

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

Package	Patch details
zoneminder	Upstream: a81e7c5 Upstream: 6d7660c

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-