Vulnerability in Radare Radare2
CVE-2021-32494
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Radare Radare2 — versions 5.3.0
- Radare2 — versions 5.3.0-git 26142
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/radareorg/radare2/issues/18667 (Exploit, Patch, Issue Tracking, Vendor Advisory)
- github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-32494?
- CVE-2021-32494 is a critical-severity vulnerability in Radare Radare2, classified under Divide By Zero. CVSS score: 10.0/10. Published 2023-07-07.
- How severe is CVE-2021-32494?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2021-32494 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.