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Gentoo Linux Security Advisory GLSA 201808-02 |
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https://security.gentoo.org/ |
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Severity: Low |
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Title: LinuX Containers user space utilities: Arbitrary file read |
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Date: August 22, 2018 |
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Bugs: #662780 |
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ID: 201808-02 |
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Synopsis |
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======== |
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|
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A vulnerability has been found in LXC which may allow for arbitrary |
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file access (read-only). |
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Background |
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========== |
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LinuX Containers user space utilities. |
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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-emulation/lxc < 3.0.1-r1 >= 3.0.1-r1 |
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Description |
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=========== |
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|
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lxc-user-nic when asked to delete a network interface will |
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unconditionally open a user provided path. This code path may be used |
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by an unprivileged user to check for the existence of a path which they |
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wouldn't otherwise be able to reach. |
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Impact |
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====== |
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|
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A local unprivileged user could use this flaw to access arbitrary |
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files, including special device 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 LXC users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-emulation/lxc-3.0.1-r1" |
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References |
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========== |
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[ 1 ] CVE-2018-6556 |
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https://nvd.nist.gov/vuln/detail/CVE-2018-6556 |
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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/201808-02 |
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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 2018 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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