Anolis OS update for ghostscript

Published: 2023-12-26 | Updated: 2025-03-28

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2023-28879 CVE-2023-38559 CVE-2023-4042 CVE-2020-16305
CWE-ID	CWE-119 CWE-676 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Anolis OS Operating systems & Components / Operating system ghostscript-doc Operating systems & Components / Operating system package or component libgs-devel Operating systems & Components / Operating system package or component libgs Operating systems & Components / Operating system package or component ghostscript-x11 Operating systems & Components / Operating system package or component ghostscript-tools-printing Operating systems & Components / Operating system package or component ghostscript-tools-fonts Operating systems & Components / Operating system package or component ghostscript-tools-dvipdf Operating systems & Components / Operating system package or component ghostscript Operating systems & Components / Operating system package or component
Vendor	OpenAnolis

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU74502

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-28879

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing files within BCPEncode, BCPDecode, TBCPEncode, and TBCPDecode methods in base/sbcp.c. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

ghostscript-doc: before 9.54.0-11

libgs-devel: before 9.54.0-11

libgs: before 9.54.0-11

ghostscript-x11: before 9.54.0-11

ghostscript-tools-printing: before 9.54.0-11

ghostscript-tools-fonts: before 9.54.0-11

ghostscript-tools-dvipdf: before 9.54.0-11

ghostscript: before 9.54.0-11

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0994

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.

2) Buffer overflow

EUVDB-ID: #VU79041

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-38559

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the devn_pcx_write_rle() function in base/gdevdevn.c. A remote attacker can create a specially crafted PDF document, pass it to the affected application, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

ghostscript-doc: before 9.54.0-11

libgs-devel: before 9.54.0-11

libgs: before 9.54.0-11

ghostscript-x11: before 9.54.0-11

ghostscript-tools-printing: before 9.54.0-11

ghostscript-tools-fonts: before 9.54.0-11

ghostscript-tools-dvipdf: before 9.54.0-11

ghostscript: before 9.54.0-11

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0994

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.

3) Use of Potentially Dangerous Function

EUVDB-ID: #VU83483

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-4042

CWE-ID: CWE-676 - Use of Potentially Dangerous Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a missing patch for #VU45847 (CVE-2020-16305). A remote attacker can cause a denial of service via a crafted PDF file.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

ghostscript-doc: before 9.54.0-11

libgs-devel: before 9.54.0-11

libgs: before 9.54.0-11

ghostscript-x11: before 9.54.0-11

ghostscript-tools-printing: before 9.54.0-11

ghostscript-tools-fonts: before 9.54.0-11

ghostscript-tools-dvipdf: before 9.54.0-11

ghostscript: before 9.54.0-11

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0994

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.

4) Input validation error

EUVDB-ID: #VU45847

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-16305

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The 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 devices/gdevpcx.c. A remote attacker can cause a denial of service via a crafted PDF file.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

ghostscript-doc: before 9.54.0-11

libgs-devel: before 9.54.0-11

libgs: before 9.54.0-11

ghostscript-x11: before 9.54.0-11

ghostscript-tools-printing: before 9.54.0-11

ghostscript-tools-fonts: before 9.54.0-11

ghostscript-tools-dvipdf: before 9.54.0-11

ghostscript: before 9.54.0-11

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0994

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.