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Gentoo Linux Security Advisory GLSA 201709-09 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Subversion: Arbitrary code execution |
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Date: September 17, 2017 |
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Bugs: #627480 |
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ID: 201709-09 |
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Synopsis |
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======== |
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|
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A command injection vulnerability in Subversion may allow remote |
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attackers to execute arbitrary code. |
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|
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Background |
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========== |
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|
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Subversion is a version control system intended to eventually replace |
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CVS. Like CVS, it has an optional client-server architecture (where the |
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server can be an Apache server running mod_svn, or an ssh program as in |
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CVS’s :ext: method). In addition to supporting the features found in |
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CVS, Subversion also provides support for moving and copying files and |
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directories. |
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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-vcs/subversion < 1.9.7 >= 1.9.7 |
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*> 1.8.18 |
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|
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Description |
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=========== |
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|
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Specially crafted 'ssh://...' URLs may allow the owner of the |
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repository to execute arbitrary commands on client's machine if those |
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commands are already installed on the client's system. This is |
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especially dangerous when the third-party repository has one or more |
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submodules with specially crafted 'ssh://...' URLs. Each time the |
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repository is recursively cloned or submodules are updated the payload |
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will be triggered. |
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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 clone a specially crafted |
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repository, could possibly execute arbitrary code with the privileges |
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of the process. |
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|
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Workaround |
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========== |
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There are several alternative ways to fix this vulnerability. Please |
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refer to Subversion Team Announce for more details. |
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Resolution |
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========== |
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All Subversion 1.9.x users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-vcs/subversion-1.9.7" |
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|
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All Subversion 1.8.x users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-vcs/subversion-1.8.18" |
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|
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References |
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========== |
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[ 1 ] CVE-2017-9800 |
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https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-9800 |
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[ 2 ] Subversion Team Announce |
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https://subversion.apache.org/security/CVE-2017-9800-advisory.txt |
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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/201709-09 |
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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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