CVE-2023-5686

Publication date 20 October 2023

Last updated 11 July 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.

Read the notes from the security team

Why is this CVE low priority?

Out of bounds read leading to a crash, unlikely to expose any sensitive information.

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
radare	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.10 oracular	Not in release
	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.04 LTS jammy	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Ignored end of standard support
radare2	25.10 questing	Needs evaluation
	25.04 plucky	Needs evaluation
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.04 LTS jammy	Not in release
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Ignored end of standard support

Notes

sbeattie

upstream asserts that it is an OOB read when disassembling an instruction, and thus does not have any security impact (beyond perhaps a denial of service for someone performing analysis of malware).

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
radare2	Upstream: 1bdda93

Severity score breakdown

Parameter	Value
Base score	5.1 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L