Ubuntu update for ghostscript

Published: 2025-07-10

Risk	High
Patch available	YES
Number of vulnerabilities	9
CVE-ID	CVE-2023-39327 CVE-2024-29508 CVE-2024-33871 CVE-2024-56826 CVE-2024-56827 CVE-2025-27832 CVE-2025-27835 CVE-2025-27836 CVE-2025-48708
CWE-ID	CWE-835 CWE-122 CWE-427 CWE-119 CWE-312
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #9 is available.
Vulnerable software	Ubuntu Operating systems & Components / Operating system ghostscript (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU101965

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-2023-39327

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

2) Heap-based buffer overflow

EUVDB-ID: #VU93815

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-2024-29508

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

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 within the pdf_base_font_alloc() function. A remote attacker can pass specially crafted PDF file to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

3) Insecure DLL loading

EUVDB-ID: #VU92102

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-2024-33871

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to the "Driver" parameter for the "opvp"/"oprp" device specifies the name of a dynamic library and allows any library to be loaded. A remote attacker can pass a specially crafted document to the application and execute arbitrary library on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

4) Heap-based buffer overflow

EUVDB-ID: #VU101962

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-2024-56826

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

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. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

5) Heap-based buffer overflow

EUVDB-ID: #VU102955

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-2024-56827

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

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 within the opj_j2k_add_tlmarker() function in src/lib/openjp2/j2k.c. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

6) Buffer overflow

EUVDB-ID: #VU106098

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/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-2025-27832

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 in contrib/japanese/gdevnpdl.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

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

7) Buffer overflow

EUVDB-ID: #VU106101

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/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-2025-27835

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 in psi/zbfont.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

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

8) Buffer overflow

EUVDB-ID: #VU106102

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/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-2025-27836

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 in contrib/japanese/gdev10v.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

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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.

9) Cleartext storage of sensitive information

EUVDB-ID: #VU109790

Risk: Medium

CVSSv4.0: 2.9 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2025-48708

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to read PDF documents protected with a password.

The vulnerability exists due to an error within the gs_lib_ctx_stash_sanitized_arg() function in base/gslibctx.c caused by incorrect sanitization of arguments for the # case. As a result, a created PDF document includes its password in cleartext.

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 25.04

ghostscript (Ubuntu package): before 9.26~dfsg+0-0ubuntu0.16.04.14+esm9

CPE2.3

External links

https://ubuntu.com/security/notices/USN-7623-1

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