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Rocky Linux 8 : curl (RLSA-2021:4511)

medium Nessus Plugin ID 157735

Synopsis

The remote Rocky Linux host is missing one or more security updates.

Description

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:4511 advisory.

 - 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)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://errata.rockylinux.org/RLSA-2021:4511

https://bugzilla.redhat.com/show_bug.cgi?id=1941964

https://bugzilla.redhat.com/show_bug.cgi?id=1947493

https://bugzilla.redhat.com/show_bug.cgi?id=1964887

https://bugzilla.redhat.com/show_bug.cgi?id=1970902

Plugin Details

Severity: Medium

ID: 157735

File Name: rocky_linux_RLSA-2021-4511.nasl

Version: 1.5

Type: local

Published: 2/9/2022

Updated: 11/7/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

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

CPE: p-cpe:/a:rocky:linux:libcurl-devel, p-cpe:/a:rocky:linux:libcurl, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:libcurl-debuginfo, p-cpe:/a:rocky:linux:curl, p-cpe:/a:rocky:linux:libcurl-minimal-debuginfo, p-cpe:/a:rocky:linux:curl-debugsource, p-cpe:/a:rocky:linux:curl-debuginfo, p-cpe:/a:rocky:linux:libcurl-minimal

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/15/2021

Vulnerability Publication Date: 7/24/2021

Reference Information

CVE: CVE-2021-22876, CVE-2021-22898, CVE-2021-22925

IAVA: 2021-A-0352-S, 2021-A-0437-S