CVE-2022-41715

Published: 14 October 2022

Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
golang-1.17 Launchpad, Ubuntu, Debian	jammy	Not vulnerable (code not present)
	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	upstream	Needs triage
	bionic	Does not exist
	focal	Does not exist
golang-1.18 Launchpad, Ubuntu, Debian	bionic	Released (1.18.1-1ubuntu1~18.04.4)
	focal	Released (1.18.1-1ubuntu1~20.04.2)
	jammy	Released (1.18.1-1ubuntu1.1)
	lunar	Does not exist
	trusty	Ignored (end of standard support)
	upstream	Needs triage
	xenial	Ignored (end of standard support)
golang-1.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	lunar	Not vulnerable (1.19.2-1ubuntu1)
	trusty	Ignored (end of standard support)
	upstream	Released (1.19.2-1)
	xenial	Ignored (end of standard support)
	kinetic	Not vulnerable (1.19.2-1ubuntu1)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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