Use After Free in Radare Radare2
CVE-2021-32495
Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory afterwards. This will allow attackers to cause denial of service.
Vulnerability class: Use-After-Free
EPSS: 0.006 (46.0th percentile) — read the EPSS interpretation.
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.
Affected products
- Radare Radare2 — versions 5.3.0
- Radare2 — versions radare2 5.3.0-git 26142
Weakness classification (CWE)
Public proof-of-concept exploits
References
- patrick@puiterwijk.org (Patch, Issue Tracking, Vendor Advisory)
- patrick@puiterwijk.org (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-32495?
- CVE-2021-32495 is a critical-severity vulnerability in Radare Radare2, classified under Use After Free. CVSS score: 10.0/10. Published 2023-07-07.
- How severe is CVE-2021-32495?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2021-32495 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.