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Gentoo Linux Security Advisory GLSA 202208-33 |
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https://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: Gnome Shell, gettext, libcroco: Multiple Vulnerabilities |
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Date: August 21, 2022 |
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Bugs: #722752, #755848, #769998 |
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ID: 202208-33 |
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|
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Synopsis |
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======== |
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|
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A vulnerability has been found in libcroco which could result in denial |
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of service. |
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|
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Background |
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========== |
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|
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GNOME Shell provides core user interface functions for the GNOME |
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desktop, like switching to windows and launching applications. |
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|
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gettext contains the GNU locale utilities. |
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|
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libcroco is a standalone CSS2 parsing and manipulation library. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-libs/libcroco < 0.6.13 >= 0.6.13 |
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2 gnome-base/gnome-shell < 3.36.7 >= 3.36.7 |
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3 sys-devel/gettext < 0.21 >= 0.21 |
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|
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Description |
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=========== |
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|
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The cr_parser_parse_any_core function in libcroco's cr-parser.c does not |
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limit recursion, leading to a denial of service via a stack overflow |
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when trying to parse crafted CSS. |
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|
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Gnome Shell and gettext bundle libcroco in their own sources and thus |
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are potentially vulnerable as well. |
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|
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Impact |
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====== |
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|
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An attacker with control over the input to the library can cause a denial of service. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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All gettext users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-devel/gettext-0.21" |
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|
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All Gnome Shell users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=gnome-base/gnome-shell-3.36.7" |
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|
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All libcroco users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/libcroco-0.6.13" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2020-12825 |
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https://nvd.nist.gov/vuln/detail/CVE-2020-12825 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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https://security.gentoo.org/glsa/202208-33 |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2022 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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https://creativecommons.org/licenses/by-sa/2.5 |