openEuler 22.03 LTS update for ghostscript



| Updated: 2024-06-07
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-28879
CVE-2023-36664
CVE-2023-38559
CWE-ID CWE-119
CWE-78
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
 openEuler
Operating systems & Components / Operating system

ghostscript-help
Operating systems & Components / Operating system package or component

ghostscript-debugsource
Operating systems & Components / Operating system package or component

ghostscript-devel
Operating systems & Components / Operating system package or component

ghostscript-tools-dvipdf
Operating systems & Components / Operating system package or component

ghostscript-debuginfo
Operating systems & Components / Operating system package or component

ghostscript
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 3 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

openEuler: 22.03 LTS

ghostscript-help: before 9.55.0-5

ghostscript-debugsource: before 9.55.0-5

ghostscript-devel: before 9.55.0-5

ghostscript-tools-dvipdf: before 9.55.0-5

ghostscript-debuginfo: before 9.55.0-5

ghostscript: before 9.55.0-5

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1606


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) OS Command Injection

EUVDB-ID: #VU77939

Risk: High

CVSSv4.0: 7.3 [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:P/U:Amber]

CVE-ID: CVE-2023-36664

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: Yes

Description

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

The vulnerability exists due to improper input validation for pipe devices (with the %pipe% prefix or the | pipe character prefix). A remote attacker can trick the victim to open a specially crafted PDF file and execute arbitrary OS commands 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

openEuler: 22.03 LTS

ghostscript-help: before 9.55.0-5

ghostscript-debugsource: before 9.55.0-5

ghostscript-devel: before 9.55.0-5

ghostscript-tools-dvipdf: before 9.55.0-5

ghostscript-debuginfo: before 9.55.0-5

ghostscript: before 9.55.0-5

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1606


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. However, proof of concept for this vulnerability is available.

3) 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

openEuler: 22.03 LTS

ghostscript-help: before 9.55.0-5

ghostscript-debugsource: before 9.55.0-5

ghostscript-devel: before 9.55.0-5

ghostscript-tools-dvipdf: before 9.55.0-5

ghostscript-debuginfo: before 9.55.0-5

ghostscript: before 9.55.0-5

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1606


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.



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