Heap overflow via unchecked pattern length multiplication
Published Mar 11, 2025 · Updated Mar 11, 2025
Integer overflow in ZVBI 0.2.43 and earlier allows remote attackers to corrupt heap memory through an oversized search pattern. In vbi_search_new in src/search.c, multiplication of pat_len by twice the UCS-2 element size can wrap before malloc allocates the esc_pat buffer. Remote reachability depends on a consuming application passing an attacker-controlled non-regular-expression pattern; the reported consequence includes a process crash.
Summary
What happened
Integer overflow in ZVBI 0.2.43 and earlier allows remote attackers to corrupt heap memory through an oversized search pattern. In vbi_search_new in src/search.c, multiplication of pat_len by twice the UCS-2 element size can wrap before malloc allocates the esc_pat buffer. Remote reachability depends on a consuming application passing an attacker-controlled non-regular-expression pattern; the reported consequence includes a process crash.
The record
- CVE
- CVE-2025-2177
- Published
- Mar 11, 2025
- Updated
- Mar 11, 2025
- Vendor
- zapping-vbi
- Product
- ZVBI
- Classifications
- CWE-189, CWE-190
- 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?
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.
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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