Summaryinfo

A vulnerability labeled as problematic has been found in libzvbi up to 0.2.43. This issue affects the function _vbi_strndup_iconv. Such manipulation leads to integer overflow. This vulnerability is traded as CVE-2025-2175. The attack may be launched remotely. Furthermore, there is an exploit available. The affected component should be upgraded. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability was found in libzvbi up to 0.2.43. It has been rated as problematic. Affected by this issue is the function _vbi_strndup_iconv. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is availability.

The weakness was shared by Yariv Nedivi as GHSA-g7cg-7gw9-v8cf. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-2175. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known.

It is declared as proof-of-concept. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional. The vulnerability scanner Nessus provides a plugin with the ID 233205 (SUSE SLED15 / SLES15 / openSUSE 15 Security Update : zvbi (SUSE-SU-2025:0979-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.2.44 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (233205). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• libzvbi

Version

• 0.2.0
• 0.2.1
• 0.2.2
• 0.2.3
• 0.2.4
• 0.2.5
• 0.2.6
• 0.2.7
• 0.2.8
• 0.2.9
• 0.2.10
• 0.2.11
• 0.2.12
• 0.2.13
• 0.2.14
• 0.2.15
• 0.2.16
• 0.2.17
• 0.2.18
• 0.2.19
• 0.2.20
• 0.2.21
• 0.2.22
• 0.2.23
• 0.2.24
• 0.2.25
• 0.2.26
• 0.2.27
• 0.2.28
• 0.2.29
• 0.2.30
• 0.2.31
• 0.2.32
• 0.2.33
• 0.2.34
• 0.2.35
• 0.2.36
• 0.2.37
• 0.2.38
• 0.2.39
• 0.2.40
• 0.2.41
• 0.2.42
• 0.2.43

CPE 2.3info

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CPE 2.2info

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Accepted

• Submit #512801: Open Source libzvbi 0.2.43 Integer Overflow -> Heap Overflow (_vbi_strndup_iconv) (by ninpwn)

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