gnome-base/gnome-shell-48.8 — Security Advisories

portage-ng glsa

▸ GLSA 202208-33 Gnome Shell, gettext, libcroco: Multiple Vulnerabilities this version unaffected normal remote 2022-08-21

A vulnerability has been found in libcroco which could result in denial of service.

Announced: 2022-08-21
Revised: 2022-08-21
Access: remote
Bugs: #722752 #755848 #769998
Advisory: https://security.gentoo.org/glsa/202208-33

Affected packages

Package	Arch	Vulnerable	Unaffected
dev-libs/libcroco	*	< 0.6.13	>= 0.6.13
gnome-base/gnome-shell	*	< 3.36.7	>= 3.36.7
sys-devel/gettext	*	< 0.21	>= 0.21

Background

GNOME Shell provides core user interface functions for the GNOME desktop, like switching to windows and launching applications. gettext contains the GNU locale utilities. libcroco is a standalone CSS2 parsing and manipulation library.

Description

The cr_parser_parse_any_core function in libcroco's cr-parser.c does not limit recursion, leading to a denial of service via a stack overflow when trying to parse crafted CSS. Gnome Shell and gettext bundle libcroco in their own sources and thus are potentially vulnerable as well.

Impact

An attacker with control over the input to the library can cause a denial of service.

Workaround

There is no known workaround at this time.

Resolution

All gettext users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-devel/gettext-0.21"

All Gnome Shell users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=gnome-base/gnome-shell-3.36.7"

All libcroco users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libcroco-0.6.13"

References

CVE-2020-12825

▸ GLSA 202009-08 GNOME Shell: Information disclosure this version unaffected low local 2020-09-13

An information disclosure vulnerability in GNOME Shell might allow local attackers to obtain sensitive information.

Announced: 2020-09-13
Revised: 2020-09-13
Access: local
Bugs: #736802
Advisory: https://security.gentoo.org/glsa/202009-08

Affected packages

Package	Arch	Vulnerable	Unaffected
gnome-base/gnome-shell	*	< 3.34.5-r1	>= 3.34.5-r1

Background

GNOME Shell provides core user interface functions for the GNOME 3 desktop, like switching to windows and launching applications.

Description

It was discovered that GNOME Shell incorrectly handled the login screen password dialog.

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

All GNOME Shell users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=gnome-base/gnome-shell-3.34.5-r1"

References

CVE-2020-17489