Detections
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Alpine: curl: security update to 7.67.0-r5

medium Tenable Cloud Security Plugin ID 404001

Description

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

 - curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used
 option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for
 sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer
 to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-
 text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing
 the string provided by the application. (CVE-2021-22925)

 - libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is
 done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is built to use
 the macOS native TLS library Secure Transport, an application can ask for the client certificate by name
 or with a file name - using the same option. If the name exists as a file, it will be used instead of by
 name.If the appliction runs with a current working directory that is writable by other users (like
 `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and
 thereby trick the application to use the file based cert instead of the one referred to by name making
 libcurl send the wrong client certificate in the TLS connection handshake. (CVE-2021-22926)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-22925

https://security.alpinelinux.org/vuln/CVE-2021-22926

Plugin Details

Severity: Medium

ID: 404001

Version: Revision 1.25

Type: Local

Published: 10/31/2023

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-22925

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 7/25/2021

Reference Information

CVE: CVE-2021-22925, CVE-2021-22926

IAVA: 2021-A-0352-S