Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation.

For Debian 7 'Wheezy', these problems have been fixed in version 1:2012.1.15AR.5-2.1+deb7u3.

We recommend that you upgrade your ntfs-3g packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Jann Horn discovered that NTFS-3G incorrectly filtered environment variables when using the modprobe utility. A local attacker could possibly use this issue to load arbitrary kernel modules.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201702-10 (NTFS-3G: Privilege escalation)

    The NTFS-3G driver does not properly clear environment variables before       invoking mount or umount.
    This flaw is similar to the vulnerability described in       &ldquo;GLSA-201701-19&rdquo; and &ldquo;GLSA-201603-04&rdquo; referenced below but is now       implemented in the NTFS-3G driver itself.
  Impact :

    A local user could gain root privileges.
  Workaround :

    There is no known workaround at this time. However, on Gentoo when the       &ldquo;suid&rdquo; USE flag is not set (which is the default) an attacker cannot       exploit the flaw.

This update for ntfs-3g_ntfsprogs fixes the following issues :

CVE-2017-0358: Missing sanitization of the environment during a call to modprobe allowed local users to escalate fo root privilege (bsc#1022500)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation.

This update for ntfs-3g_ntfsprogs fixes the following issues :

  - CVE-2017-0358: Missing sanitization of the environment     during a call to modprobe allowed local users to     escalate fo root privilege (bsc#1022500)

This update was imported from the SUSE:SLE-12:Update update project.

The remote SUSE Linux SLED12 / SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2965-1 advisory.

  - Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not     scrub the environment before executing modprobe with elevated privileges. A local user can take advantage     of this flaw for local root privilege escalation. (CVE-2017-0358)

  - An integer underflow issue exists in ntfs-3g 2017.3.23. A local attacker could potentially exploit this by     running /bin/ntfs-3g with specially crafted arguments from a specially crafted directory to cause a heap     buffer overflow, resulting in a crash or the ability to execute arbitrary code. In installations where     /bin/ntfs-3g is a setuid-root binary, this could lead to a local escalation of privileges. (CVE-2019-9755)

  - 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. (CVE-2021-33285)

  - In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a     heap buffer overflow can occur and allow for code execution. (CVE-2021-33286)

  - In NTFS-3G versions < 2021.8.22, when specially crafted NTFS attributes are read in the function     ntfs_attr_pread_i, a heap buffer overflow can occur and allow for writing to arbitrary memory or denial of     service of the application. (CVE-2021-33287)

  - In NTFS-3G versions < 2021.8.22, when a specially crafted MFT section is supplied in an NTFS image a heap     buffer overflow can occur and allow for code execution. (CVE-2021-33289)

  - In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode pathname is supplied in an NTFS image     a heap buffer overflow can occur resulting in memory disclosure, denial of service and even code     execution. (CVE-2021-35266)

  - NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and     MFTMirror allowing for code execution or escalation of privileges when setuid-root. (CVE-2021-35267)

  - In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode is loaded in the function     ntfs_inode_real_open, a heap buffer overflow can occur allowing for code execution and escalation of     privileges. (CVE-2021-35268)

  - NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute from the MFT is setup in the     function ntfs_attr_setup_flag, a heap buffer overflow can occur allowing for code execution and escalation     of privileges. (CVE-2021-35269)

  - A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G <     2021.8.22. (CVE-2021-39251)

  - A crafted NTFS image can cause an out-of-bounds read in ntfs_ie_lookup in NTFS-3G < 2021.8.22.
    (CVE-2021-39252)

  - A crafted NTFS image can cause an out-of-bounds read in ntfs_runlists_merge_i in NTFS-3G < 2021.8.22.
    (CVE-2021-39253)

  - A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in     ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22. (CVE-2021-39255)

  - A crafted NTFS image can cause a heap-based buffer overflow in ntfs_inode_lookup_by_name in NTFS-3G <     2021.8.22. (CVE-2021-39256)

  - A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain     (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22. (CVE-2021-39257)

  - A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in     NTFS-3G < 2021.8.22. (CVE-2021-39258)

  - A crafted NTFS image can trigger an out-of-bounds access, caused by an unsanitized attribute length in     ntfs_inode_lookup_by_name, in NTFS-3G < 2021.8.22. (CVE-2021-39259)

  - A crafted NTFS image can cause an out-of-bounds access in ntfs_inode_sync_standard_information in NTFS-3G     < 2021.8.22. (CVE-2021-39260)

  - A crafted NTFS image can cause a heap-based buffer overflow in ntfs_compressed_pwrite in NTFS-3G <     2021.8.22. (CVE-2021-39261)

  - A crafted NTFS image can cause an out-of-bounds access in ntfs_decompress in NTFS-3G < 2021.8.22.
    (CVE-2021-39262)

  - A crafted NTFS image can trigger a heap-based buffer overflow, caused by an unsanitized attribute in     ntfs_get_attribute_value, in NTFS-3G < 2021.8.22. (CVE-2021-39263)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
96963	Debian DLA-815-1 : ntfs-3g security update	Nessus	Debian Local Security Checks	2/3/2017	1/11/2021	high
96951	Ubuntu 16.04 LTS : NTFS-3G vulnerability (USN-3182-1)	Nessus	Ubuntu Local Security Checks	2/2/2017	10/23/2023	high
97253	GLSA-201702-10 : NTFS-3G: Privilege escalation	Nessus	Gentoo Local Security Checks	2/21/2017	1/11/2021	high
118587	SUSE SLED12 Security Update : ntfs-3g_ntfsprogs (SUSE-SU-2018:3587-1)	Nessus	SuSE Local Security Checks	11/1/2018	9/10/2019	high
96933	Debian DSA-3780-1 : ntfs-3g - security update	Nessus	Debian Local Security Checks	2/2/2017	1/11/2021	high
119672	SUSE SLED12 Security Update : ntfs-3g_ntfsprogs (SUSE-SU-2018:3587-2)	Nessus	SuSE Local Security Checks	12/14/2018	9/10/2019	high
118874	openSUSE Security Update : ntfs-3g_ntfsprogs (openSUSE-2018-1376)	Nessus	SuSE Local Security Checks	11/10/2018	1/19/2021	high
153124	SUSE SLED12 / SLES12 Security Update : ntfs-3g_ntfsprogs (SUSE-SU-2021:2965-1)	Nessus	SuSE Local Security Checks	9/8/2021	7/14/2023	high

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