Bug 2126424 (CVE-2022-39170)

Summary:	CVE-2022-39170 libdwarf: double free in _dwarf_exec_frame_instr() in dwarf_frame.c
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	caswilli, epel-packagers-sig, fche, jitesh.1337, kaycoth, michel, orion
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A double-free vulnerability was found in libdwarf's dwarf_expand_frame_instructions() function of the dwarf_frame.c file. A carefully crafted object file could cause the ‘dwarfdump' utility to do a double free in handling an error condition. This issue could cause a segmentation violation or other major error, terminating the calling application and resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2126426
Bug Blocks:	2123783

Description TEJ RATHI 2022-09-13 12:17:35 UTC

libdwarf 0.4.1 has a double free in _dwarf_exec_frame_instr in dwarf_frame.c.

https://github.com/davea42/libdwarf-code/commit/60303eb80ecc7747bf29776d545e2a5c5a76f6f8
https://github.com/davea42/libdwarf-code/issues/132

Comment 1 TEJ RATHI 2022-09-13 12:20:56 UTC

Created libdwarf tracking bugs for this issue:

Affects: fedora-all [bug 2126426]