squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2024:2396 advisory.

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

The remote CentOS Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the squashfs-tools-4.4-10.git1.el9 build changelog.

  - unvalidated filepaths allow writing outside of destination rhbz#2000638 (CVE-2021-40153)

  - additional write outside destination directory exploit fix rhbz#2007304 (CVE-2021-41072)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4591-1 advisory.

  - Integer overflow in the read_fragment_table_4 function in unsquash-4.c in Squashfs and sasquatch allows     remote attackers to cause a denial of service (application crash) via a crafted input, which triggers a     stack-based buffer overflow. (CVE-2015-4645)

  - (1) unsquash-1.c, (2) unsquash-2.c, (3) unsquash-3.c, and (4) unsquash-4.c in Squashfs and sasquatch allow     remote attackers to cause a denial of service (application crash) via a crafted input. (CVE-2015-4646)

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4424-1 advisory.

  - Integer overflow in the read_fragment_table_4 function in unsquash-4.c in Squashfs and sasquatch allows     remote attackers to cause a denial of service (application crash) via a crafted input, which triggers a     stack-based buffer overflow. (CVE-2015-4645)

  - (1) unsquash-1.c, (2) unsquash-2.c, (3) unsquash-3.c, and (4) unsquash-4.c in Squashfs and sasquatch allow     remote attackers to cause a denial of service (application crash) via a crafted input. (CVE-2015-4646)

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

The version of squashfs-tools installed on the remote host is prior to 4.3-0.21.gitaae0aff4. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2152 advisory.

  - Integer overflow in the read_fragment_table_4 function in unsquash-4.c in Squashfs and sasquatch allows     remote attackers to cause a denial of service (application crash) via a crafted input, which triggers a     stack-based buffer overflow. (CVE-2015-4645)

  - (1) unsquash-1.c, (2) unsquash-2.c, (3) unsquash-3.c, and (4) unsquash-4.c in Squashfs and sasquatch allow     remote attackers to cause a denial of service (application crash) via a crafted input. (CVE-2015-4646)

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

The remote host is affected by the vulnerability described in GLSA-202305-29 (squashfs-tools: Multiple Vulnerabilities)

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

According to the versions of the squashfs-tools package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

According to the versions of the squashfs-tools package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

According to the versions of the squashfs-tools package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

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

According to the versions of the squashfs-tools package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

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

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5078-2 advisory.

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

  - squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different     vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link     and then contents under the same filename in a filesystem can cause unsquashfs to first create the     symbolic link pointing outside the expected directory, and then the subsequent write operation will cause     the unsquashfs process to write through the symbolic link elsewhere in the filesystem. (CVE-2021-41072)

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

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dsa-4967 advisory.

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

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

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2752 advisory.

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

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

The remote Ubuntu 18.04 LTS / 20.04 LTS / 21.04 host has a package installed that is affected by a vulnerability as referenced in the USN-5057-1 advisory.

  - squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is     then used by unsquashfs to create the new file during the unsquash. The filename is not validated for     traversal outside of the destination directory, and thus allows writing to locations outside of the     destination. (CVE-2021-40153)

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

ID	Name	Product	Family	Severity
194775	RHEL 9 : squashfs-tools (RHSA-2024:2396)	Nessus	Red Hat Local Security Checks	high
191304	CentOS 9 : squashfs-tools-4.4-10.git1.el9	Nessus	CentOS Local Security Checks	high
186334	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : squashfs (SUSE-SU-2023:4591-1)	Nessus	SuSE Local Security Checks	high
185601	SUSE SLES12 Security Update : squashfs (SUSE-SU-2023:4424-1)	Nessus	SuSE Local Security Checks	high
178515	Amazon Linux 2 : squashfs-tools (ALAS-2023-2152)	Nessus	Amazon Linux Local Security Checks	high
176469	GLSA-202305-29 : squashfs-tools: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
170843	EulerOS Virtualization 3.0.2.2 : squashfs-tools (EulerOS-SA-2023-1294)	Nessus	Huawei Local Security Checks	high
158291	EulerOS 2.0 SP3 : squashfs-tools (EulerOS-SA-2022-1189)	Nessus	Huawei Local Security Checks	high
157971	EulerOS Virtualization 3.0.6.0 : squashfs-tools (EulerOS-SA-2022-1096)	Nessus	Huawei Local Security Checks	high
157931	EulerOS Virtualization 3.0.6.6 : squashfs-tools (EulerOS-SA-2022-1147)	Nessus	Huawei Local Security Checks	high
156505	EulerOS Virtualization 3.0.2.6 : squashfs-tools (EulerOS-SA-2021-2904)	Nessus	Huawei Local Security Checks	high
156345	EulerOS Virtualization 3.0.2.0 : squashfs-tools (EulerOS-SA-2021-2854)	Nessus	Huawei Local Security Checks	high
155474	EulerOS Virtualization 2.9.0 : squashfs-tools (EulerOS-SA-2021-2774)	Nessus	Huawei Local Security Checks	high
155460	EulerOS Virtualization 2.9.1 : squashfs-tools (EulerOS-SA-2021-2748)	Nessus	Huawei Local Security Checks	high
155270	EulerOS 2.0 SP5 : squashfs-tools (EulerOS-SA-2021-2674)	Nessus	Huawei Local Security Checks	high
155230	EulerOS 2.0 SP9 : squashfs-tools (EulerOS-SA-2021-2698)	Nessus	Huawei Local Security Checks	high
155130	EulerOS 2.0 SP9 : squashfs-tools (EulerOS-SA-2021-2723)	Nessus	Huawei Local Security Checks	high
154791	EulerOS 2.0 SP8 : squashfs-tools (EulerOS-SA-2021-2645)	Nessus	Huawei Local Security Checks	high
153408	Ubuntu 16.04 ESM : Squashfs-Tools vulnerabilities (USN-5078-2)	Nessus	Ubuntu Local Security Checks	high
153024	Debian DSA-4967-1 : squashfs-tools - security update	Nessus	Debian Local Security Checks	high
152983	Debian DLA-2752-1 : squashfs-tools - LTS security update	Nessus	Debian Local Security Checks	high
152916	Ubuntu 18.04 LTS / 20.04 LTS : Squashfs-Tools vulnerability (USN-5057-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2021-40153

high

Tenable Plugins

high

high

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