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Gentoo Linux Security Advisory GLSA 202107-03 |
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https://security.gentoo.org/ |
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Severity: High |
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Title: libqb: Insecure temporary file |
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Date: July 03, 2021 |
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Bugs: #699860 |
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ID: 202107-03 |
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Synopsis |
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======== |
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|
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An insecure temporary file usage has been reported in libqb possibly |
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allowing local code execution. |
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Background |
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========== |
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|
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libqb is a library with the primary purpose of providing |
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high-performance, reusable features for client-server architecture, |
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such as logging, tracing, inter-process communication (IPC), and |
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polling. |
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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 sys-cluster/libqb < 1.0.5 >= 1.0.5 |
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Description |
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=========== |
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|
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It was discovered that libqb used predictable filenames (under /dev/shm |
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and /tmp) without O_EXCL. |
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|
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Impact |
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====== |
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|
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A local attacker could perform symlink attacks to overwrite arbitrary |
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files with the privileges of the user running the application linked |
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against libqb. |
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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 libqb users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-cluster/libqb-1.0.5" |
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References |
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========== |
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[ 1 ] CVE-2019-12779 |
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https://nvd.nist.gov/vuln/detail/CVE-2019-12779 |
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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/202107-03 |
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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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