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Gentoo Linux Security Advisory GLSA 202107-31 |
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https://security.gentoo.org/ |
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Severity: High |
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Title: polkit: Privilege escalation |
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Date: July 13, 2021 |
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Bugs: #794052 |
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ID: 202107-31 |
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Synopsis |
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======== |
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A vulnerability in polkit could lead to local root privilege |
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escalation. |
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Background |
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========== |
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polkit is a toolkit for managing policies related to unprivileged |
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processes communicating with privileged process. |
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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 sys-auth/polkit < 0.119 >= 0.119 |
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Description |
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=========== |
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The function polkit_system_bus_name_get_creds_sync() was called without |
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checking for error, and as such temporarily treats the authentication |
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request as coming from root. |
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Impact |
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====== |
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Please review the referenced CVE identifiers for details. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All polkit users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.119" |
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References |
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========== |
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[ 1 ] CVE-2021-3560 |
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https://nvd.nist.gov/vuln/detail/CVE-2021-3560 |
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Availability |
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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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https://security.gentoo.org/glsa/202107-31 |
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Concerns? |
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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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License |
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======= |
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Copyright 2021 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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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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https://creativecommons.org/licenses/by-sa/2.5 |
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