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.

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.

Phillip Lougher reports :

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.

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

  - (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)

  - 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)

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 :

  - 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)

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.

New squashfs-tools packages are available for Slackware 14.2 and
-current to fix security issues.

The remote host is affected by the vulnerability described in GLSA-201701-73 (SQUASHFS: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in SQUASHFS. Please review       the CVE identifiers referenced below for details.
  Impact :

    Remote attackers, by enticing a user to process a specially crafted       SQUASHFS image, could execute arbitrary code with the privileges of the       process.
  Workaround :

    There is no known workaround at this time.

Security fix for CVE-2015-4645 / CVE-2015-4646

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

ID	Name	Product	Family	Severity
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
147814	FreeBSD : squashfs-tools -- Integer overflow (317487c6-85ca-11eb-80fa-14dae938ec40)	Nessus	FreeBSD Local Security Checks	medium
132200	EulerOS 2.0 SP3 : squashfs-tools (EulerOS-SA-2019-2665)	Nessus	Huawei Local Security Checks	high
129451	EulerOS 2.0 SP8 : squashfs-tools (EulerOS-SA-2019-2092)	Nessus	Huawei Local Security Checks	high
128923	EulerOS 2.0 SP2 : squashfs-tools (EulerOS-SA-2019-1871)	Nessus	Huawei Local Security Checks	high
102038	Slackware 14.2 / current : squashfs-tools (SSA:2017-209-01)	Nessus	Slackware Local Security Checks	high
96859	GLSA-201701-73 : SQUASHFS: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
84901	Fedora 21 : squashfs-tools-4.3-11.fc21 (2015-10760)	Nessus	Fedora Local Security Checks	high
84841	Fedora 22 : squashfs-tools-4.3-11.fc22 (2015-10750)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2015-4645

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Tenable Plugins

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