Double Free in Radare Radare2
CVE-2020-27794
A double free issue was discovered in radare2 in cmd_info.c:cmd_info(). Successful exploitation could lead to modification of unexpected memory locations and potentially causing a crash.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000
Affected products
- Radare Radare2
- Radare2 — versions Fixed in v4.4.0.
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/radareorg/radare2/issues/16303 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/radareorg/radare2/commit/cb8b683758edddae2d2f62e8e63a738c39f92683 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27794?
- CVE-2020-27794 is a critical-severity vulnerability in Radare Radare2, classified under Double Free. CVSS score: 9.1/10. Published 2022-08-19.
- How severe is CVE-2020-27794?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2020-27794 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.