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Gentoo Linux Security Advisory GLSA 202104-01 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Git: User-assisted execution of arbitrary code |
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Date: April 30, 2021 |
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Bugs: #774678 |
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ID: 202104-01 |
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Synopsis |
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======== |
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|
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A vulnerability has been found in Git that could allow a remote |
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attacker to execute arbitrary code. |
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Background |
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========== |
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Git is a distributed version control system designed. |
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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/git < 2.26.3 >= 2.26.3 |
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Description |
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=========== |
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It was discovered that Git could be fooled into running remote code |
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during a clone on case-insensitive file systems with support for |
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symbolic links, if Git is configured globally to apply delay-capable |
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clean/smudge filters (such as Git LFS). |
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Impact |
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====== |
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|
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A remote attacker could entice a user to clone a specially crafted |
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repository, possibly resulting in the remote execution of arbitrary |
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code with the privileges of the user running the application. |
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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 Git users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-vcs/git-2.26.3" |
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References |
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========== |
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[ 1 ] CVE-2021-21300 |
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https://nvd.nist.gov/vuln/detail/CVE-2021-21300 |
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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/202104-01 |
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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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