Bug 2073949 (CVE-2022-1240)

Summary:	CVE-2022-1240 radare2: heap buffer overflow in libr/bin/format/mach0/mach0.c
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	henrik, rebus
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	radare2 5.8.6	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-04-11 10:57:13 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2073955, 2073956
Bug Blocks:

Description Marian Rehak 2022-04-11 08:31:25 UTC

Heap buffer overflow in libr/bin/format/mach0/mach0.c in GitHub repository radareorg/radare2 prior to 5.8.6. If address sanitizer is disabled during the compiling, the program should executes into the `r_str_ncpy` function. Therefore I think it is very likely to be exploitable. For more general description of heap buffer overflow, see [CWE](https://cwe.mitre.org/data/definitions/122.html).

Reference:

https://huntr.dev/bounties/e589bd97-4c74-4e79-93b5-0951a281facc
https://github.com/radareorg/radare2/commit/ca8d8b39f3e34a4fd943270330b80f1148129de4

Comment 1 Marian Rehak 2022-04-11 08:39:10 UTC

Created radare2 tracking bugs for this issue:

Affects: epel-all [bug 2073956]
Affects: fedora-all [bug 2073955]

Comment 2 Product Security DevOps Team 2022-04-11 10:57:11 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.