Debian update for ghostscript
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-45944 CVE-2021-45949 |
| CWE-ID | CWE-416 CWE-122 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
ghostscript (Debian package) Operating systems & Components / Operating system package or component |
| Vendor | Debian |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU59316
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-2021-45944
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the sampled_data_sample() function, called from sampled_data_continue and interp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate ghostscript package to one of the following versions: 9.27~dfsg-2+deb10u5, 9.53.3~dfsg-7+deb11u2.
Vulnerable software versionsghostscript (Debian package): 9.27~dfsg-2+deb10u1 - 9.53.3~dfsg-7+deb11u1
CPE2.3- cpe:2.3:a:debian:ghostscript_debian_package:9.27~dfsg-2 deb10u1:*:*:*:*:debian_linux:*:*
- cpe:2.3:a:debian:ghostscript_debian_package:9.27~dfsg-2 deb10u2:*:*:*:*:debian_linux:*:*
- cpe:2.3:a:debian:ghostscript_debian_package:9.27~dfsg-2 deb10u3:*:*:*:*:debian_linux:*:*
https://www.debian.org/security/2022/dsa-5038
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: #VU59317
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-2021-45949
CWE-ID:
CWE-122 - Heap-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 sampled_data_finish() function (called from sampled_data_continue and interp). A remote attacker can create a specially crafted file, trick the victim into opening it, trigger 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.
MitigationUpdate ghostscript package to one of the following versions: 9.27~dfsg-2+deb10u5, 9.53.3~dfsg-7+deb11u2.
Vulnerable software versionsghostscript (Debian package): 9.27~dfsg-2+deb10u1 - 9.53.3~dfsg-7+deb11u1
CPE2.3- cpe:2.3:a:debian:ghostscript_debian_package:9.27~dfsg-2 deb10u1:*:*:*:*:debian_linux:*:*
- cpe:2.3:a:debian:ghostscript_debian_package:9.27~dfsg-2 deb10u2:*:*:*:*:debian_linux:*:*
- cpe:2.3:a:debian:ghostscript_debian_package:9.27~dfsg-2 deb10u3:*:*:*:*:debian_linux:*:*
https://www.debian.org/security/2022/dsa-5038
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.
