Bug 674006 (CVE-2018-20450, CVE-2018-20452)

Summary:	<dev-libs/libxls-1.5.2: Multiple vulnerabilities (CVE-2018-{20450,20452})
Product:	Gentoo Security	Reporter:	Melissa Mcdonald <melrosemc216599>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal	CC:	slyfox
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:	B2 [glsa+ cve]
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	638336

Description Melissa Mcdonald 2018-12-29 16:16:53 UTC

https://nvd.nist.gov/vuln/detail/CVE-2018-20450:

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

https://nvd.nist.gov/vuln/detail/CVE-2018-20452:

The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.

References:
https://github.com/evanmiller/libxls/issues/34
https://github.com/evanmiller/libxls/issues/35

Comment 1 Yury German Gentoo Infrastructure

2019-04-27 06:00:06 UTC

Slyfox, please take a look at the two bugs, and advise if fixed or take appropriate actions.

Comment 2 Sergei Trofimovich (RETIRED) gentoo-dev

2020-03-29 08:35:31 UTC

Both are fixed in >=dev-libs/libxls-1.5.2-r1 (lowest available version in ::gentoo).

Comment 3 Sam James archtester

2020-03-29 19:24:00 UTC

(In reply to Sergei Trofimovich from comment #2)
> Both are fixed in >=dev-libs/libxls-1.5.2-r1 (lowest available version in
> ::gentoo).

Excellent, thanks.

Comment 4 GLSAMaker/CVETool Bot gentoo-dev

2020-03-30 14:54:31 UTC

This issue was resolved and addressed in
 GLSA 202003-64 at https://security.gentoo.org/glsa/202003-64
by GLSA coordinator Thomas Deutschmann (whissi).