CVE-2019-11455

Published: 22 April 2019

A buffer over-read in Util_urlDecode in util.c in Tildeslash Monit before 5.25.3 allows a remote authenticated attacker to retrieve the contents of adjacent memory via manipulation of GET or POST parameters. The attacker can also cause a denial of service (application outage).

From the Ubuntu Security Team

Zack Flack discovered a buffer overread when Monit decoded certain crafted URLs. An attacker could exploit this to leak potentially sensitive information.

Priority

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package	Release	Status
monit Launchpad, Ubuntu, Debian	bionic	Released (1:5.25.1-1ubuntu0.1~esm1) Available with Ubuntu Pro
	cosmic	Released (1:5.25.2-1ubuntu0.1)
	disco	Released (1:5.25.2-3ubuntu0.1)
	eoan	Ignored (end of life)
	focal	Not vulnerable (1:5.25.3-1)
	groovy	Not vulnerable (1:5.25.3-1)
	hirsute	Not vulnerable (1:5.25.3-1)
	impish	Not vulnerable (1:5.25.3-1)
	jammy	Not vulnerable (1:5.25.3-1)
	kinetic	Not vulnerable (1:5.25.3-1)
	lunar	Not vulnerable (1:5.25.3-1)
	trusty	Released (1:5.6-2ubuntu0.1+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Needed
	xenial	Released (1:5.16-2ubuntu0.2+esm1) Available with Ubuntu Pro

Severity score breakdown

Parameter	Value
Base score	8.1
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References

Bugs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927775

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