CVE-2022-27781

Publication date 11 May 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation. Due to an erroneous function, a malicious server could make libcurl built with NSS get stuck in a never-ending busy-loop when trying to retrieve that information.]

Read the notes from the security team

Mitigation

Do not use the `CURLOPT_CERTINFO` option

Status

Show unmaintained releases

Package	Ubuntu Release	Status
curl	22.04 LTS jammy	Fixed 7.81.0-1ubuntu1.2
	21.10 impish	Fixed 7.74.0-1.3ubuntu2.2
	20.04 LTS focal	Fixed 7.68.0-1ubuntu2.11
	18.04 LTS bionic	Fixed 7.58.0-2ubuntu3.18
	16.04 LTS xenial	Fixed 7.47.0-1ubuntu2.19+esm4 Ubuntu Pro
	14.04 LTS trusty	Fixed 7.35.0-1ubuntu2.20+esm11 Ubuntu Pro

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Notes

alexmurray

Affects curl versions 7.34.0 up to and include 7.83.0

Severity score breakdown

Parameter	Value
Base score	7.5 · High
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