Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
EUVDB-ID: #VU33419
Risk: Medium
CVSSv3.1: 4.8 [AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2015-4645
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the read_fragment_table_4 function in unsquash-4.c when processing a crafted input, which triggers a stack-based buffer overflow. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected package squashfs to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.1 - 5.5
openSUSE Leap Micro: 5.3 - 5.4
Basesystem Module: 15-SP4 - 15-SP5
SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP5
SUSE Linux Enterprise Server 15: SP3 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise High Performance Computing LTSS 15: SP3
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3
openSUSE Leap: 15.3 - 15.5
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2 - 4.3
SUSE Manager Server: 4.2 - 4.3
SUSE Manager Proxy: 4.2 - 4.3
squashfs: before 4.6.1-150300.3.3.1
squashfs-debugsource: before 4.6.1-150300.3.3.1
squashfs-debuginfo: before 4.6.1-150300.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20234591-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU33418
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2015-4645
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the read_fragment_table_4() function in unsquash-4.c . A remote attacker can pass specially crafted data to the application, trigger an integer overflow and perform a denial of service (DoS) attack.
Update the affected package squashfs to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.1 - 5.5
openSUSE Leap Micro: 5.3 - 5.4
Basesystem Module: 15-SP4 - 15-SP5
SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP5
SUSE Linux Enterprise Server 15: SP3 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise High Performance Computing LTSS 15: SP3
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3
openSUSE Leap: 15.3 - 15.5
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2 - 4.3
SUSE Manager Server: 4.2 - 4.3
SUSE Manager Proxy: 4.2 - 4.3
squashfs: before 4.6.1-150300.3.3.1
squashfs-debugsource: before 4.6.1-150300.3.3.1
squashfs-debuginfo: before 4.6.1-150300.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20234591-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU83033
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2015-4646
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in unsquash-1.c, unsquash-2.c, unsquash-3.c, and unsquash-4.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationUpdate the affected package squashfs to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.1 - 5.5
openSUSE Leap Micro: 5.3 - 5.4
Basesystem Module: 15-SP4 - 15-SP5
SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP5
SUSE Linux Enterprise Server 15: SP3 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise High Performance Computing LTSS 15: SP3
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3
openSUSE Leap: 15.3 - 15.5
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2 - 4.3
SUSE Manager Server: 4.2 - 4.3
SUSE Manager Proxy: 4.2 - 4.3
squashfs: before 4.6.1-150300.3.3.1
squashfs-debugsource: before 4.6.1-150300.3.3.1
squashfs-debuginfo: before 4.6.1-150300.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20234591-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU56306
Risk: Medium
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40153
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to input validation error when processing directory traversal sequences within the squashfs_opendir in unsquash-1.c. A remote user can store the filename in the directory entry, which later is used by unsquashfs to create the new file during the unsquash. As a result, it is possible to write files to locations outside of the destination.
MitigationUpdate the affected package squashfs to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.1 - 5.5
openSUSE Leap Micro: 5.3 - 5.4
Basesystem Module: 15-SP4 - 15-SP5
SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP5
SUSE Linux Enterprise Server 15: SP3 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise High Performance Computing LTSS 15: SP3
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3
openSUSE Leap: 15.3 - 15.5
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2 - 4.3
SUSE Manager Server: 4.2 - 4.3
SUSE Manager Proxy: 4.2 - 4.3
squashfs: before 4.6.1-150300.3.3.1
squashfs-debugsource: before 4.6.1-150300.3.3.1
squashfs-debuginfo: before 4.6.1-150300.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20234591-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU57416
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-41072
CWE-ID:
CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to overwrite arbitrary files on the system.
The vulnerability exists due to a link following issue in squashfs_opendir in unsquash-2.c when processing a squashfs filesystem that has been crafted to include a symbolic link under the same filename in a filesystem. The attacker 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.
MitigationUpdate the affected package squashfs to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.1 - 5.5
openSUSE Leap Micro: 5.3 - 5.4
Basesystem Module: 15-SP4 - 15-SP5
SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP5
SUSE Linux Enterprise Server 15: SP3 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise High Performance Computing LTSS 15: SP3
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3
openSUSE Leap: 15.3 - 15.5
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2 - 4.3
SUSE Manager Server: 4.2 - 4.3
SUSE Manager Proxy: 4.2 - 4.3
squashfs: before 4.6.1-150300.3.3.1
squashfs-debugsource: before 4.6.1-150300.3.3.1
squashfs-debuginfo: before 4.6.1-150300.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20234591-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.