Home/CVE/Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create m
CVE

CVE-2021-32494

Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create m

Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.

CRITICAL · CVSS 10 EPSS 0.00232
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-369Divide By Zero
CWE-369Divide By Zero
▤

Affected Products & Versions

1
radare radare2all versions
⚠

Public Exploits & PoCs

1
pocgithub.com · 18667github.com
▣

Scoring & Timeline

10
CRITICAL · CVSS v3.1 · patrick@puiterwijk.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Jul 2023 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62PatchVendor Advisory
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