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CVE-2022-32206

Published: 27 June 2022

curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.

Notes

AuthorNote
mdeslaur
introduced in 7.57.0

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
curl
Launchpad, Ubuntu, Debian
bionic
Released (7.58.0-2ubuntu3.19)
focal
Released (7.68.0-1ubuntu2.12)
impish
Released (7.74.0-1.3ubuntu2.3)
jammy
Released (7.81.0-1ubuntu1.3)
upstream
Released (7.84.0)
kinetic
Released (7.84.0-1)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H