Tarantool: Heap-buffer-overflow in lj_buf_ruleb128
A heap-buffer-overflow vulnerability has been reported in the Tarantool software, specifically in the lj_buf_ruleb128 function. The issue was identified through OSS-Fuzz and involves a read overflow on the heap. No CVSS score or vendor patch information is currently available. The affected versions include those at or after commit 8ad443de995a7800906718925ce6c9162d80c4a9. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
The vulnerability is a heap-buffer-overflow read detected in the lj_buf_ruleb128 function within Tarantool, as reported by OSS-Fuzz. The crash occurs during buffer reading operations (lj_bcread) and affects versions starting from commit 8ad443de995a7800906718925ce6c9162d80c4a9. No further technical details or exploitation methods are provided. No CVSS score or patch information is available from the source data.
Potential Impact
Heap-buffer-overflow vulnerabilities can lead to memory corruption, potentially causing crashes or undefined behavior. However, no known exploits or active attacks have been reported for this issue. The exact impact on confidentiality, integrity, or availability is not detailed in the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications and OSS-Fuzz updates for any forthcoming fixes.
Tarantool: Heap-buffer-overflow in lj_buf_ruleb128
Description
A heap-buffer-overflow vulnerability has been reported in the Tarantool software, specifically in the lj_buf_ruleb128 function. The issue was identified through OSS-Fuzz and involves a read overflow on the heap. No CVSS score or vendor patch information is currently available. The affected versions include those at or after commit 8ad443de995a7800906718925ce6c9162d80c4a9. There are no known exploits in the wild at this time.
Affected software
pkg:generic/tarantoolRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability is a heap-buffer-overflow read detected in the lj_buf_ruleb128 function within Tarantool, as reported by OSS-Fuzz. The crash occurs during buffer reading operations (lj_bcread) and affects versions starting from commit 8ad443de995a7800906718925ce6c9162d80c4a9. No further technical details or exploitation methods are provided. No CVSS score or patch information is available from the source data.
Potential Impact
Heap-buffer-overflow vulnerabilities can lead to memory corruption, potentially causing crashes or undefined behavior. However, no known exploits or active attacks have been reported for this issue. The exact impact on confidentiality, integrity, or availability is not detailed in the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications and OSS-Fuzz updates for any forthcoming fixes.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2025-266
- Osv Schema Version
- 1.6.0
- Ecosystems
- ["OSS-Fuzz"]
Threat ID: 6a50bac568715ace43587cef
Added to database: 07/10/2026, 09:26:29 UTC
Last enriched: 09/07/2026, 17:02:14 UTC
Last updated: 09/07/2026, 19:34:37 UTC
Views: 31
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