Bug 2033046 (CVE-2021-43814)

Summary:	CVE-2021-43814 rizin: heap-based out-of-bounds write in parse_die() in librz/bin/dwarf.c when reversing an AMD64 ELF binary with DWARF debug info
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	rschirone91
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-12-15 19:26:06 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2033047
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-12-15 18:53:55 UTC

Rizin is a UNIX-like reverse engineering framework and command-line toolset. In versions up to and including 0.3.1 there is a heap-based out of bounds write in parse_die() when reversing an AMD64 ELF binary with DWARF debug info. When a malicious AMD64 ELF binary is opened by a victim user, Rizin may crash or execute unintended actions. No workaround are known and users are advised to upgrade.

References:
https://github.com/rizinorg/rizin/security/advisories/GHSA-hqqp-vjcm-mw8r
https://github.com/rizinorg/rizin/issues/2083

Upstream patch:
https://github.com/rizinorg/rizin/commit/aa6917772d2f32e5a7daab25a46c72df0b5ea406

Comment 1 Guilherme de Almeida Suckevicz 2021-12-15 18:54:07 UTC

Created rizin tracking bugs for this issue:

Affects: fedora-all [bug 2033047]

Comment 2 Product Security DevOps Team 2021-12-15 19:26:05 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.