High severity · published Aug 19, 2022
CVE-2020-27793
An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c
7.5
CVSS
1.1%
EPSS
No
On KEV
Description
An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
radare2 ·
Fixed in v4.4.0. · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27793
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27793
Patch
https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc
Exploit
https://github.com/radareorg/radare2/issues/16304
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