CVE-2022-27781

HIGH

curl < 7.83.1 - Denial of Service via Malicious Server Certificate Chain

Title source: llm
STIX 2.1

Description

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.

References (5)

Core 5
Core References
Exploit, Third Party Advisory
https://hackerone.com/reports/1555441
Mailing List, Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5197
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202212-01

Scores

CVSS v3 7.5
EPSS 0.0243
EPSS Percentile 82.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-400 CWE-835
Status published
Products (15)
None/https://github.com/curl/curl Fixed in 7.83.1
debian/debian_linux 10.0
debian/debian_linux 11.0
haxx/curl < 7.83.1
netapp/clustered_data_ontap
netapp/h300s_firmware
netapp/h410s_firmware
netapp/h500s_firmware
netapp/h700s_firmware
netapp/hci_bootstrap_os
... and 5 more
Published Jun 02, 2022
Tracked Since Feb 18, 2026