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Gentoo Linux Security Advisory GLSA 201709-07 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Kpathsea: User-assisted execution of arbitrary code |
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Date: September 17, 2017 |
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Bugs: #612328 |
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ID: 201709-07 |
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Synopsis |
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======== |
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|
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A vulnerability in Kpathsea allows remote attackers to execute |
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arbitrary commands by manipulating the -tex option from mpost program. |
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Background |
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========== |
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|
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Kpathsea is a library to do path searching. It is used by TeX Live and |
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others TeX related software. |
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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/kpathsea < 6.2.2_p20160523 >= 6.2.2_p20160523 |
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Description |
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=========== |
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|
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It was discovered that the mpost program from the shell_escape_commands |
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list is capable of executing arbitrary external programs during the |
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conversion of .tex files. The responsible function is runpopen() |
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(texmfmp.c). |
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|
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Impact |
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====== |
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|
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A remote attacker, by enticing a user to open a specially crafted .tex |
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file, could possibly execute arbitrary code with the privileges of the |
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process. |
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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 Kpathsea users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot -v ">=dev-libs/kpathsea-6.2.2_p20160523" |
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Packages which depend on this library may need to be recompiled. Tools |
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such as revdep-rebuild may assist in identifying some of these |
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packages. |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2016-10243 |
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https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10243 |
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|
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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/201709-07 |
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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 2017 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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http://creativecommons.org/licenses/by-sa/2.5 |
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