#VU79752 NULL pointer dereference in radare2 - CVE-2022-4843
Published: August 21, 2023
Vulnerability identifier: #VU79752
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-4843
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
radare2
radare2
Software vendor:
Radare
Radare
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the r_io_bank_read_at() function in io_bank.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://huntr.dev/bounties/075b2760-66a0-4d38-b3b5-e9934956ab7f
- https://github.com/radareorg/radare2/commit/842f809d4ec6a12af2906f948657281c9ebc8a24
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OFCCTYAD7ASNQ23ABCUPAZHEDEIOCW6T/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FOXRDPI3OYYKO4PKXE3XD2IFONL6BCHR/