cbcvebase.
CVE-2021-4021
published 2022-02-24

CVE-2021-4021: A vulnerability was found in Radare2 in versions prior to 5.6.2, 5.6.0, 5.5.4 and 5.5.2. Mapping a huge section filled with zeros of an ELF64 binary for MIPS…

PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.05%
60.3th percentile
A vulnerability was found in Radare2 in versions prior to 5.6.2, 5.6.0, 5.5.4 and 5.5.2. Mapping a huge section filled with zeros of an ELF64 binary for MIPS architecture can lead to uncontrolled resource consumption and DoS.

Affected

3 ranges
VendorProductVersion rangeFixed in
debianradare2< radare2 5.9.0+dfsg-1 (sid)radare2 5.9.0+dfsg-1 (sid)
radareradare2<= 5.5.0
radareradare2

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.