Bug 637136 (CVE-2017-11570, CVE-2017-11573)

Summary:	media-gfx/fontforge: Multiple vulnerabilities (CVE-2017-11570, CVE-2017-11573)
Product:	Gentoo Security	Reporter:	Christopher Díaz Riveros (RETIRED) <chrisadr>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED INVALID
Severity:	normal	CC:	floppym, fonts
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://github.com/fontforge/fontforge/issues/3097 https://github.com/fontforge/fontforge/issues/3098
Whiteboard:	B3 [upstream cve]
Package list:		Runtime testing required:	---

Description Christopher Díaz Riveros (RETIRED) gentoo-dev

2017-11-11 15:04:14 UTC

CVE-2017-11573 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-11573):
  FontForge 20161012 is vulnerable to a buffer over-read in
  ValidatePostScriptFontName (parsettf.c) resulting in DoS or code execution
  via a crafted otf file.

CVE-2017-11570 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-11570):
  FontForge 20161012 is vulnerable to a buffer over-read in umodenc
  (parsettf.c) resulting in DoS or code execution via a crafted otf file.

Comment 1 Michael Boyle 2018-05-11 02:56:21 UTC

@maintainers. there is a purposed patch for both these CVE
https://github.com/gnehsoah/poc/blob/master/fontforge/umodenc-in-parsettf.c-global-buffer-overflow.otf

Michael Boyle
Gentoo Security Padawan.

Comment 2 Mike Gilbert gentoo-dev

2018-05-28 18:49:13 UTC

(In reply to Michael Boyle from comment #1)

That link points at a font file, not a patch.

Comment 3 Sam James archtester

2020-06-20 01:16:51 UTC

These are quite old and upstream couldn't reproduce these. No reply from reporter.