Anolis OS update for tigervnc



Risk Low
Patch available YES
Number of vulnerabilities 7
CVE-ID CVE-2023-5380
CVE-2024-0229
CVE-2024-21885
CVE-2024-21886
CVE-2024-31080
CVE-2024-31081
CVE-2024-31083
CWE-ID CWE-416
CWE-362
CWE-122
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Anolis OS
Operating systems & Components / Operating system

tigervnc-selinux
Operating systems & Components / Operating system package or component

tigervnc-license
Operating systems & Components / Operating system package or component

tigervnc-icons
Operating systems & Components / Operating system package or component

tigervnc-server-module
Operating systems & Components / Operating system package or component

tigervnc-server-minimal
Operating systems & Components / Operating system package or component

tigervnc-server
Operating systems & Components / Operating system package or component

tigervnc
Operating systems & Components / Operating system package or component

Vendor OpenAnolis

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU82381

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-5380

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in DestroyWindow. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.

2) Race condition

EUVDB-ID: #VU85448

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-0229

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition when reattaching to a different master device. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.

3) Heap-based buffer overflow

EUVDB-ID: #VU85451

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-21885

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the XISendDeviceHierarchyEvent() function. A local user can trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.

4) Heap-based buffer overflow

EUVDB-ID: #VU85452

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-21886

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the DisableDevice() function. A local user can trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.

5) Heap-based buffer overflow

EUVDB-ID: #VU88115

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-31080

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary error within the ProcXIGetSelectedEvents() function. A local user can trigger a heap-based buffer overflow and read system memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.

6) Heap-based buffer overflow

EUVDB-ID: #VU88116

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-31081

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary error within the ProcXIPassiveGrabDevice() function. A local user can trigger a heap-based buffer overflow and read system memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.

7) Use-after-free

EUVDB-ID: #VU88118

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-31083

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the ProcRenderAddGlyphs() function. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

tigervnc-selinux: before 1.13.1-10.0.1

tigervnc-license: before 1.13.1-10.0.1

tigervnc-icons: before 1.13.1-10.0.1

tigervnc-server-module: before 1.13.1-10.0.1

tigervnc-server-minimal: before 1.13.1-10.0.1

tigervnc-server: before 1.13.1-10.0.1

tigervnc: before 1.13.1-10.0.1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0417


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.



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