CVE-2026-41051: TOCTOU in csync2
प्लेटफ़ॉर्म
linux
घटक
csync2
में ठीक किया गया
2.0+git.1600444747.83b3644-3.1
CVE-2026-41051 describes a Time-of-Check-Time-of-Use (TOCTOU) vulnerability discovered in csync2. This flaw arises due to the insecure handling of temporary directories when the software is compiled using C99 or later standards. Successful exploitation could allow an attacker to manipulate temporary files, potentially leading to unauthorized access or modification of data. Affected versions include 2.0+git.1600444747.83b3644-3.1–2.0+git.1600444747.83b3644-3.1, with a fix available in version 2.0+git.1600444747.83b3644-3.1.
प्रभाव और हमले की स्थितियाँअनुवाद हो रहा है…
The TOCTOU vulnerability in csync2 allows an attacker to exploit a race condition during the creation and use of temporary files. By manipulating the filesystem between the time a file is checked for existence and the time it is used, an attacker can potentially overwrite or replace critical files with malicious content. This could lead to arbitrary code execution, data corruption, or denial of service. The specific impact depends on how csync2 utilizes these temporary files within its operations. A successful attack could compromise the integrity of the data being synchronized and potentially grant the attacker control over the system running csync2.
शोषण संदर्भअनुवाद हो रहा है…
CVE-2026-41051 was published on 2026-05-13. Its severity is currently assessed as Medium (CVSS score of 5). There is no indication of this vulnerability being actively exploited in the wild or appearing on KEV/EPSS. Public proof-of-concept (POC) code is currently unavailable, but the TOCTOU nature of the vulnerability suggests that exploitation is possible with sufficient effort.
खतरा खुफिया
एक्सप्लॉइट स्थिति
CVSS वेक्टर
इन मेट्रिक्स का क्या मतलब है?
- Attack Vector
- स्थानीय — हमलावर को सिस्टम पर स्थानीय सत्र या शेल की आवश्यकता है।
- Attack Complexity
- निम्न — कोई विशेष शर्त नहीं। विश्वसनीय रूप से शोषण योग्य।
- Privileges Required
- निम्न — कोई भी वैध उपयोगकर्ता खाता पर्याप्त है।
- User Interaction
- आवश्यक — पीड़ित को फ़ाइल खोलनी, लिंक पर क्लिक करना या पेज पर जाना होगा।
- Scope
- अपरिवर्तित — प्रभाव केवल कमज़ोर घटक तक सीमित।
- Confidentiality
- कोई नहीं — गोपनीयता पर कोई प्रभाव नहीं।
- Integrity
- कोई नहीं — अखंडता पर कोई प्रभाव नहीं।
- Availability
- उच्च — पूर्ण क्रैश या संसाधन समाप्ति। पूर्ण सेवा से इनकार।
प्रभावित सॉफ्टवेयर
समयरेखा
- Reserved
- प्रकाशित
शमन और वर्कअराउंडअनुवाद हो रहा है…
The primary mitigation for CVE-2026-41051 is to upgrade to version 2.0+git.1600444747.83b3644-3.1 or later, which contains the fix. If an immediate upgrade is not feasible, consider implementing stricter file permissions on the temporary directories used by csync2 to limit the potential impact of a successful attack. Review the csync2 configuration to ensure that temporary directories are not world-writable. Monitor system logs for any unusual file access patterns or modifications within the temporary directories. After upgrade, confirm the fix by attempting to create a symbolic link to a temporary file while csync2 is running and verifying that the operation fails.
कैसे ठीक करेंअनुवाद हो रहा है…
Actualice a una versión de csync2 posterior a 2.0+git.1600444747.83b3644-3.1 para mitigar el riesgo de ataques TOCTOU en los directorios temporales. La actualización corrige la forma en que se manejan los directorios temporales, previniendo la posibilidad de que un atacante manipule el proceso.
अक्सर पूछे जाने वाले सवालअनुवाद हो रहा है…
What is CVE-2026-41051 — TOCTOU in csync2?
CVE-2026-41051 is a Time-of-Check-Time-of-Use vulnerability in csync2, allowing attackers to manipulate temporary files and potentially compromise the system.
Am I affected by CVE-2026-41051 in csync2?
You are affected if you are running csync2 versions 2.0+git.1600444747.83b3644-3.1–2.0+git.1600444747.83b3644-3.1. Check your version with csync2 --version.
How do I fix CVE-2026-41051 in csync2?
Upgrade to version 2.0+git.1600444747.83b3644-3.1 or later. If immediate upgrade isn't possible, restrict permissions on temporary directories.
Is CVE-2026-41051 being actively exploited?
There is currently no public evidence of CVE-2026-41051 being actively exploited, but the TOCTOU nature makes exploitation possible.
Where can I find the official csync2 advisory for CVE-2026-41051?
Refer to the official csync2 project website or relevant security mailing lists for the advisory related to CVE-2026-41051.
क्या आपका प्रोजेक्ट प्रभावित है?
अपनी डिपेंडेंसी फ़ाइल अपलोड करें और तुरंत जानें कि यह CVE और अन्य आपको प्रभावित करती हैं या नहीं।
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