Remote service crash via UCS-2 length overflow
Published Mar 11, 2025 · Updated Mar 11, 2025
Integer overflow in ZVBI 0.2.43 and earlier allows remote attackers to crash a consuming process through crafted UCS-2 input. The conversion path computes an output allocation from src_length without rejecting arithmetic wraparound, producing an undersized heap buffer. Remote data must reach the affected conversion function through a consuming application; the documented consequence is a service-interrupting heap overflow.
Summary
What happened
Integer overflow in ZVBI 0.2.43 and earlier allows remote attackers to crash a consuming process through crafted UCS-2 input. The conversion path computes an output allocation from src_length without rejecting arithmetic wraparound, producing an undersized heap buffer. Remote data must reach the affected conversion function through a consuming application; the documented consequence is a service-interrupting heap overflow.
The record
- CVE
- CVE-2025-2174
- Published
- Mar 11, 2025
- Updated
- Mar 11, 2025
- Vendor
- zapping-vbi
- Product
- ZVBI
- Classifications
- CWE-190, CWE-189, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 11, 2025CVE publishedPublication date reported by the CVE source.
- Mar 11, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.2.0
- Affected versionversion=0.2.1
- Affected versionversion=0.2.10
- Affected versionversion=0.2.11
- Affected versionversion=0.2.12
- Affected versionversion=0.2.13
- Affected versionversion=0.2.14
- Affected versionversion=0.2.15
- Affected versionversion=0.2.16
- Affected versionversion=0.2.17
- Affected versionversion=0.2.18
- Affected versionversion=0.2.19
- Affected versionversion=0.2.2
- Affected versionversion=0.2.20
- Affected versionversion=0.2.21
- Affected versionversion=0.2.22
- Affected versionversion=0.2.23
- Affected versionversion=0.2.24
- Affected versionversion=0.2.25
- Affected versionversion=0.2.26
- Affected versionversion=0.2.27
- Affected versionversion=0.2.28
- Affected versionversion=0.2.29
- Affected versionversion=0.2.3
- Affected versionversion=0.2.30
- Affected versionversion=0.2.31
- Affected versionversion=0.2.32
- Affected versionversion=0.2.33
- Affected versionversion=0.2.34
- Affected versionversion=0.2.35
- Affected versionversion=0.2.36
- Affected versionversion=0.2.37
- Affected versionversion=0.2.38
- Affected versionversion=0.2.39
- Affected versionversion=0.2.4
- Affected versionversion=0.2.40
- Affected versionversion=0.2.41
- Affected versionversion=0.2.42
- Affected versionversion=0.2.43
- Affected versionversion=0.2.5
- Affected versionversion=0.2.6
- Affected versionversion=0.2.7
- Affected versionversion=0.2.8
- Affected versionversion=0.2.9
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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