856034 – (CVE-2022-33034, CVE-2022-35164, CVE-2022-45332) media-gfx/libredwg: stack buffer overflow

Bug 856034 (CVE-2022-33034, CVE-2022-35164, CVE-2022-45332) - media-gfx/libredwg: stack buffer overflow

Summary: media-gfx/libredwg: stack buffer overflow

Status:	CONFIRMED

Alias:	CVE-2022-33034, CVE-2022-35164, CVE-2022-45332

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All Linux

Importance:	Normal minor (vote)
Assignee:	Gentoo Security

URL:	https://github.com/LibreDWG/libredwg/...
Whiteboard:	B3 [upstream]
Keywords:

Depends on:
Blocks:

Reported:	2022-07-03 01:51 UTC by John Helmert III
Modified:	2022-11-30 17:19 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description John Helmert III archtester

2022-07-03 01:51:21 UTC

CVE-2022-33034:

LibreDWG v0.12.4.4608 was discovered to contain a stack overflow via the function copy_bytes at decode_r2007.c.

Comment 1 John Helmert III archtester

2022-08-18 17:57:34 UTC

CVE-2022-35164 (https://github.com/LibreDWG/libredwg/issues/497):

LibreDWG v0.12.4.4608 & commit f2dea29 was discovered to contain a heap use-after-free via bit_copy_chain.

Looks like there's a patch on a separate branch.

Comment 2 John Helmert III archtester

2022-11-30 17:19:10 UTC

CVE-2022-45332 (https://github.com/LibreDWG/libredwg/issues/524):

LibreDWG v0.12.4.4643 was discovered to contain a heap buffer overflow via the function decode_preR13_section_hdr at decode_r11.c.