Radare2: Heap-buffer-overflow in io_memory_read
A heap-buffer-overflow vulnerability exists in the io_memory_read function of radare2, as reported by OSS-Fuzz. This issue involves an out-of-bounds write operation on the heap during memory read operations. Multiple specific versions of radare2 are affected. There is no CVSS score or vendor advisory available to confirm patch status or exploitation in the wild.
AI Analysis
Technical Summary
The vulnerability is a heap-buffer-overflow caused by improper bounds checking in the io_memory_read function within radare2. This flaw can lead to a write beyond the allocated heap buffer, potentially causing memory corruption. The issue was identified through OSS-Fuzz testing and affects numerous discrete radare2 versions from 5.8.0 through 6.2.0. No official patch or remediation details are provided in the available data. There are no known exploits in the wild at this time.
Potential Impact
Heap-buffer-overflow vulnerabilities can lead to memory corruption, which might cause crashes or potentially enable arbitrary code execution depending on the context. However, no specific impact details or exploitation reports are available for this issue.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when processing untrusted inputs with affected radare2 versions.
Radare2: Heap-buffer-overflow in io_memory_read
Description
A heap-buffer-overflow vulnerability exists in the io_memory_read function of radare2, as reported by OSS-Fuzz. This issue involves an out-of-bounds write operation on the heap during memory read operations. Multiple specific versions of radare2 are affected. There is no CVSS score or vendor advisory available to confirm patch status or exploitation in the wild.
Affected software
pkg:generic/radare2Run 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 caused by improper bounds checking in the io_memory_read function within radare2. This flaw can lead to a write beyond the allocated heap buffer, potentially causing memory corruption. The issue was identified through OSS-Fuzz testing and affects numerous discrete radare2 versions from 5.8.0 through 6.2.0. No official patch or remediation details are provided in the available data. There are no known exploits in the wild at this time.
Potential Impact
Heap-buffer-overflow vulnerabilities can lead to memory corruption, which might cause crashes or potentially enable arbitrary code execution depending on the context. However, no specific impact details or exploitation reports are available for this issue.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when processing untrusted inputs with affected radare2 versions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2022-1137
- Osv Schema Version
- 1.3.0
- Aliases
- []
- Ecosystems
- ["OSS-Fuzz"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a7891debf8831d539c87a18
Added to database: 08/09/2026, 14:42:38 UTC
Last enriched: 08/09/2026, 14:53:41 UTC
Last updated: 08/09/2026, 15:35:28 UTC
Views: 3
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