Alpine: libcurl, multiple curl packages: security update to 7.84.0-r0

critical Tenable Cloud Security Plugin ID 423802

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and
curl < 7.84.0 stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP
requests to this, or other servers to which the cookies match, create requests that become larger than the
threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead
returns an error.This denial state might remain for as long as the same cookies are kept, match and
haven't expired. Due to cookie matching rules, a server on `foo.example.com` can set cookies that also
would match for `bar.example.com`, making it it possible for a "sister server" to effectively cause a
denial of service for a sibling site on the same second level domain using this method. (CVE-2022-32205)

- 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. (CVE-2022-32206)

- When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by
finalizing the operation with a rename from a temporary name to the final target file name.In that rename
operation, it might accidentally *widen* the permissions for the target file, leaving the updated file
accessible to more users than intended. (CVE-2022-32207)

- When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly.
This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject
data to the client. (CVE-2022-32208)

Plugin Details

Severity: Critical

ID: 423802

Version: Revision 1.10

Type: Local

Family: Alpine Linux Local Security Checks

Published: 4/4/2025

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.58

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2022-32207

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 6/27/2022

Reference Information

CVE: CVE-2022-32205, CVE-2022-32206, CVE-2022-32207, CVE-2022-32208

IAVA: 2022-A-0255-S

Detections

Analytics