Vulnerability Details CVE-2021-33285
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 14.4%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 6.9
References
- http://www.openwall.com/lists/oss-security/2021/08/30/1
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386
- https://bugzilla.redhat.com/show_bug.cgi?id=2001608
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
- https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
- https://security.gentoo.org/glsa/202301-01
- https://www.debian.org/security/2021/dsa-4971
- https://www.openwall.com/lists/oss-security/2021/08/30/1
- http://www.openwall.com/lists/oss-security/2021/08/30/1
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386
- https://bugzilla.redhat.com/show_bug.cgi?id=2001608
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
- https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
- https://security.gentoo.org/glsa/202301-01
- https://www.debian.org/security/2021/dsa-4971
- https://www.openwall.com/lists/oss-security/2021/08/30/1
Products affected by CVE-2021-33285
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cpe:2.3:a:tuxera:ntfs-3g:-
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cpe:2.3:a:tuxera:ntfs-3g:2009.1.1
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cpe:2.3:a:tuxera:ntfs-3g:2009.11.14
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cpe:2.3:a:tuxera:ntfs-3g:2009.2.1
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cpe:2.3:a:tuxera:ntfs-3g:2009.3.8
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cpe:2.3:a:tuxera:ntfs-3g:2009.4.4
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cpe:2.3:a:tuxera:ntfs-3g:2010.1.16
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cpe:2.3:a:tuxera:ntfs-3g:2010.10.2
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cpe:2.3:a:tuxera:ntfs-3g:2010.3.6
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cpe:2.3:a:tuxera:ntfs-3g:2010.5.16
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cpe:2.3:a:tuxera:ntfs-3g:2010.5.22
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cpe:2.3:a:tuxera:ntfs-3g:2010.8.8
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cpe:2.3:a:tuxera:ntfs-3g:2011.1.15
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cpe:2.3:a:tuxera:ntfs-3g:2011.4.12
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cpe:2.3:a:tuxera:ntfs-3g:2012.1.15
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cpe:2.3:a:tuxera:ntfs-3g:2013.1.13
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cpe:2.3:a:tuxera:ntfs-3g:2014.2.15
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cpe:2.3:a:tuxera:ntfs-3g:2015.3.14
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cpe:2.3:a:tuxera:ntfs-3g:2016.2.22
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cpe:2.3:a:tuxera:ntfs-3g:2017.3.23
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:fedoraproject:fedora:35
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cpe:2.3:o:redhat:enterprise_linux:7.0
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cpe:2.3:o:redhat:enterprise_linux:8.0