CVE-2025-2174
libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability was found in libzvbi up to 0.2.43. It has been declared as problematic. Affected by this vulnerability is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to integer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is named ca1672134b3e2962cd392212c73f44f8f4cb489f. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.
In libzvbi bis 0.2.43 wurde eine problematische Schwachstelle ausgemacht. Dabei geht es um die Funktion vbi_strndup_iconv_ucs2 der Datei src/conv.c. Durch die Manipulation des Arguments src_length mit unbekannten Daten kann eine integer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung. Ein Aktualisieren auf die Version 0.2.44 vermag dieses Problem zu lösen. Der Patch wird als ca1672134b3e2962cd392212c73f44f8f4cb489f bezeichnet. Als bestmögliche Massnahme wird das Einspielen eines Upgrades empfohlen.
This update for zvbi fixes the following issues. Fixed check on src_length to avoid an uninitialized heap read. Fixed integer overflow leading to heap overflow in src/conv.c, src/io-sim.c, src/search.c. Fixed integer overflow in _vbi_strndup_iconv. Fixed integer overflow in function vbi_capture_sim_load_caption in src/io-sim.c. Fixed integer overflow in function vbi_search_new in src/search.c.
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2025-02-28 CVE Published
- 2025-03-10 CVE Reserved
- 2025-03-11 CVE Updated
- 2025-07-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-189: Numeric Errors
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (5)
URL | Tag | Source |
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https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf | Related | |
https://vuldb.com/?id.299203 | Technical Description | |
https://vuldb.com/?submit.512800 | Third Party Advisory |
URL | Date | SRC |
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URL | Date | SRC |
---|---|---|
https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489f | 2025-03-11 | |
https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44 | 2025-03-11 |
URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | * | - |
Affected
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