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Gentoo Linux Security Advisory GLSA 202101-33 |
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https://security.gentoo.org/ |
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Severity: High |
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Title: sudo: Multiple vulnerabilities |
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Date: January 26, 2021 |
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Bugs: #764986, #767364 |
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ID: 202101-33 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities have been found in sudo, the worst of which |
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could result in privilege escalation. |
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Background |
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========== |
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|
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sudo (su "do") allows a system administrator to delegate authority to |
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give certain users (or groups of users) the ability to run some (or |
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all) commands as root or another user while providing an audit trail of |
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the commands and their arguments. |
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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 app-admin/sudo < 1.9.5_p2 >= 1.9.5_p2 |
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Description |
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=========== |
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Multiple vulnerabilities have been discovered in sudo. Please review |
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the CVE identifiers referenced below for details. |
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Impact |
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====== |
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|
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Local users are able to gain unauthorized privileges on the system or |
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determine the existence of files. |
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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 sudo users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-admin/sudo-1.9.5_p2" |
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References |
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========== |
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[ 1 ] CVE-2021-23239 |
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https://nvd.nist.gov/vuln/detail/CVE-2021-23239 |
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[ 2 ] CVE-2021-23240 |
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https://nvd.nist.gov/vuln/detail/CVE-2021-23240 |
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[ 3 ] CVE-2021-3156 |
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https://nvd.nist.gov/vuln/detail/CVE-2021-3156 |
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[ 4 ] Upstream advisory (CVE-2020-23240) |
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https://www.sudo.ws/alerts/sudoedit_selinux.html |
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[ 5 ] Upstream advisory (CVE-2021-3156) |
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https://www.sudo.ws/alerts/unescape_overflow.html |
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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/202101-33 |
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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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