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Debian dla-3763 : curl - security update

high Nessus Plugin ID 192185

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3763 advisory.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3763-1 [email protected] https://www.debian.org/lts/security/ Bastien Roucaris March 17, 2024 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : curl Version : 7.64.0-4+deb10u9 CVE ID : CVE-2023-27534

 curl was affected by a path traversal vulnerability.
 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

 For Debian 10 buster, this problem has been fixed in version 7.64.0-4+deb10u9.

 We recommend that you upgrade your curl packages.

 For the detailed security status of curl please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/curl

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

Solution

Upgrade the curl packages.

See Also

https://security-tracker.debian.org/tracker/source-package/curl

https://security-tracker.debian.org/tracker/CVE-2023-27534

https://packages.debian.org/source/buster/curl

Plugin Details

Severity: High

ID: 192185

File Name: debian_DLA-3763.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/17/2024

Updated: 1/22/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2023-27534

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libcurl4, p-cpe:/a:debian:debian_linux:curl, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:libcurl3-nss, p-cpe:/a:debian:debian_linux:libcurl4-gnutls-dev, p-cpe:/a:debian:debian_linux:libcurl4-doc, p-cpe:/a:debian:debian_linux:libcurl3-gnutls, p-cpe:/a:debian:debian_linux:libcurl4-nss-dev, p-cpe:/a:debian:debian_linux:libcurl4-openssl-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2024

Vulnerability Publication Date: 3/20/2023

Reference Information

CVE: CVE-2023-27534

IAVA: 2023-A-0153-S, 2023-A-0531-S