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CVE-2025-2173

CVE-2025-2173 · libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack 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 identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.

CVSS 6.9 · Medium · EPSS 0.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libzvbi

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

    No fix published

  • zvbi Debian:12

    Versions
    • 0.2.41-1
    Affected ranges
    • ECOSYSTEM: < 0.2.41-1+deb12u1

    Update to 0.2.41-1+deb12u1

  • zvbi Debian:13

    Affected ranges
    • ECOSYSTEM: < 0.2.44-1

    Update to 0.2.44-1

  • zvbi Debian:14

    Affected ranges
    • ECOSYSTEM: < 0.2.44-1

    Update to 0.2.44-1

  • zvbi Ubuntu:14.04:LTS

    Versions
    • 0.2.33-7
    • 0.2.35-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zvbi Ubuntu:Pro:16.04:LTS

    Versions
    • 0.2.35-9
    • 0.2.35-10
    Affected ranges
    • ECOSYSTEM: < 0.2.35-10ubuntu0.1~esm1

    Update to 0.2.35-10ubuntu0.1~esm1

  • zvbi Ubuntu:Pro:18.04:LTS

    Versions
    • 0.2.35-13
    Affected ranges
    • ECOSYSTEM: < 0.2.35-13ubuntu0.1~esm1

    Update to 0.2.35-13ubuntu0.1~esm1

  • zvbi Ubuntu:Pro:20.04:LTS

    Versions
    • 0.2.35-16
    • 0.2.35-17
    Affected ranges
    • ECOSYSTEM: < 0.2.35-17ubuntu0.1~esm1

    Update to 0.2.35-17ubuntu0.1~esm1

  • zvbi Ubuntu:Pro:22.04:LTS

    Versions
    • 0.2.35-18
    • 0.2.35-19
    Affected ranges
    • ECOSYSTEM: < 0.2.35-19ubuntu0.1~esm1

    Update to 0.2.35-19ubuntu0.1~esm1

  • zvbi Ubuntu:Pro:24.04:LTS

    Versions
    • 0.2.41-2
    • 0.2.42-1
    • 0.2.42-1.1
    • 0.2.42-1.2
    • 0.2.42-2
    Affected ranges
    • ECOSYSTEM: < 0.2.42-2ubuntu0.24.04.1~esm1

    Update to 0.2.42-2ubuntu0.24.04.1~esm1

Original sources

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