Bug 821517 (CVE-2021-27836)

Summary:	dev-libs/libxls: null pointer dereferences
Product:	Gentoo Security	Reporter:	John Helmert III <ajak>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	CONFIRMED ---
Severity:	minor	CC:	maintainer-needed
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://github.com/libxls/libxls/issues/94
Whiteboard:	B3 [upstream]
Package list:		Runtime testing required:	---

Description John Helmert III archtester

2021-11-03 19:17:14 UTC

CVE-2021-27836:

An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6.2, allows attackers to cause a denial of service, via a crafted XLS file.

Three PRs listed in the issue:

https://github.com/libxls/libxls/pull/95
https://github.com/libxls/libxls/pull/96
https://github.com/libxls/libxls/pull/97

Only the first two are merged, but they're merged into dev and are
unreleased.