Unsynchronized access to shared data in a multithreaded context in cURL - CVE-2025-14017

Vulnerability identifier: #VU121025

CSH Severity: Low

CVSS v4 BT: 0.5 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-14017

CWE-ID: CWE-567

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows an attacker to bypass implemented security restrictions.

The vulnerability exists due to an error when performing multithreaded LDAPS transfers (LDAP over TLS) with libcurl. Changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers. For example, disabling certificate verification for a specific transfer could unintentionally disable the feature for other threads as well, leading to a MitM attacks against other websites.

cURL
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
Ubuntu
openSUSE Leap
Anolis OS
SecurityCenter
Nessus Network Monitor
MySQL Enterprise Backup
LANTIME Operating System Firmware (LTOS)
MySQL Server
PeopleSoft Enterprise PeopleTools
Oracle Communications Cloud Native Core Unified Data Repository
curl (Ubuntu package)
curl-debugsource
curl
libcurl4-32bit
libcurl4-debuginfo
libcurl-devel
libcurl4
curl-debuginfo
libcurl4-debuginfo-32bit
libcurl
libcurl-minimal
curl-doc
curl-minimal
libcurl-devel-64bit
libcurl4-64bit
libcurl4-64bit-debuginfo
libcurl4-32bit-debuginfo
libcurl-devel-32bit
libcurl-devel-doc
curl-fish-completion
curl-zsh-completion
curl-mini-debugsource
libcurl-mini4
libcurl-mini4-debuginfo

Install updates from vendor's website.

cURL - update to 8.18.0
SecurityCenter - addressed in versions SC-202602.1, SC-202602.2
Nessus Network Monitor - update to 6.5.3
LANTIME Operating System Firmware (LTOS) - update to 7.10.008
curl (Ubuntu package) - addressed in versions 7.35.0-1ubuntu2.20+esm19, 7.47.0-1ubuntu2.19+esm15, 7.58.0-2ubuntu3.24+esm7, 7.68.0-1ubuntu2.25+esm2, 7.81.0-1ubuntu1.22, 8.5.0-2ubuntu10.7, 8.14.1-2ubuntu1.1
curl-debugsource - addressed in versions 8.0.1-11.114.1, 8.14.1-150200.4.100.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
curl - addressed in versions 8.0.1-11.114.1, 8.14.1-150200.4.100.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4-32bit - addressed in versions 8.0.1-11.114.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4-debuginfo - addressed in versions 8.0.1-11.114.1, 8.14.1-150200.4.100.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl-devel - addressed in versions 8.0.1-11.114.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4 - addressed in versions 8.0.1-11.114.1, 8.14.1-150200.4.100.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
curl-debuginfo - addressed in versions 8.0.1-11.114.1, 8.14.1-150200.4.100.1, 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4-debuginfo-32bit - update to 8.0.1-11.114.1
curl - update to 8.4.0-13
libcurl - update to 8.4.0-13
libcurl-devel - update to 8.4.0-13
libcurl-minimal - update to 8.4.0-13
curl-doc - update to 8.4.0-13
curl-minimal - update to 8.4.0-13
libcurl-devel-64bit - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4-64bit - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4-64bit-debuginfo - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl4-32bit-debuginfo - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl-devel-32bit - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl-devel-doc - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
curl-fish-completion - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
curl-zsh-completion - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
curl-mini-debugsource - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl-mini4 - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1
libcurl-mini4-debuginfo - addressed in versions 8.14.1-150400.5.77.1, 8.14.1-150600.4.37.1

• https://curl.se/docs/CVE-2025-14017.html

• Multiple vulnerabilities in cURL
• SUSE update for curl
• SUSE update for curl
• SUSE update for curl
• Tenable Network Monitor update for third-party components
• Anolis OS update for curl
• Meinberg LANTIME firmware update for third-party components
• SUSE update for curl
• Multiple vulnerabilities in Tenable Security Center
• Ubuntu update for curl
• Ubuntu update for curl
• Multiple vulnerabilities in Oracle Communications Cloud Native Core Unified Data Repository
• Multiple vulnerabilities in PeopleSoft Enterprise PeopleTools
• Multiple vulnerabilities in MySQL Enterprise Backup
• Multiple vulnerabilities in MySQL Server