Radare2: Heap-buffer-overflow in parse_classes_64
A heap-buffer-overflow vulnerability exists in the parse_classes_64 function of radare2, as reported by OSS-Fuzz. This issue causes a read overflow of 4 bytes on the heap during parsing operations. Multiple specific versions of radare2 are affected. No known exploits in the wild have been reported, and no official patch information is provided in the available data.
AI Analysis
Technical Summary
The vulnerability is a heap-buffer-overflow read of 4 bytes occurring in the parse_classes_64 function within radare2. The crash state involves the functions parse_classes_64, classes, and r_bin_object_set_items. This was identified through OSS-Fuzz testing and affects numerous specific versions of radare2 from 5.8.0 through 6.2.0 and beyond a certain commit hash. There is no CVSS score or detailed vendor advisory available, and no patch links are provided.
Potential Impact
The heap-buffer-overflow may lead to memory corruption, potentially causing crashes or undefined behavior when parsing certain inputs. The exact impact beyond a crash is not detailed in the provided data. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory or OSS-Fuzz issue tracker for current remediation guidance. Until an official fix is available, avoid processing untrusted inputs that might trigger the vulnerability.
Radare2: Heap-buffer-overflow in parse_classes_64
Description
A heap-buffer-overflow vulnerability exists in the parse_classes_64 function of radare2, as reported by OSS-Fuzz. This issue causes a read overflow of 4 bytes on the heap during parsing operations. Multiple specific versions of radare2 are affected. No known exploits in the wild have been reported, and no official patch information is provided in the available data.
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 read of 4 bytes occurring in the parse_classes_64 function within radare2. The crash state involves the functions parse_classes_64, classes, and r_bin_object_set_items. This was identified through OSS-Fuzz testing and affects numerous specific versions of radare2 from 5.8.0 through 6.2.0 and beyond a certain commit hash. There is no CVSS score or detailed vendor advisory available, and no patch links are provided.
Potential Impact
The heap-buffer-overflow may lead to memory corruption, potentially causing crashes or undefined behavior when parsing certain inputs. The exact impact beyond a crash is not detailed in the provided data. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory or OSS-Fuzz issue tracker for current remediation guidance. Until an official fix is available, avoid processing untrusted inputs that might trigger the vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2023-35
- Osv Schema Version
- 1.4.0
- Ecosystems
- ["OSS-Fuzz"]
Threat ID: 6a7891dbbf8831d539c8789e
Added to database: 08/09/2026, 14:42:35 UTC
Last enriched: 09/07/2026, 17:04:31 UTC
Last updated: 09/22/2026, 03:39:40 UTC
Views: 45
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