Multiple vulnerabilities in Perl
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2023-47038 CVE-2023-47039 CVE-2022-48522 |
| CWE-ID | CWE-193 CWE-426 CWE-121 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Perl Universal components / Libraries / Scripting languages |
| Vendor | Perl |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Off-by-one
EUVDB-ID: #VU83508
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-47038
CWE-ID:
CWE-193 - Off-by-one Error
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an off-by-one error when processing regular expressions. A remote attacker can trigger an off-by-one error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPerl: 5.30.0 - 5.39.4
External linkshttp://ubuntu.com/security/notices/USN-6517-1
http://ubuntu.com/security/CVE-2023-47038
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) Untrusted search path
EUVDB-ID: #VU83509
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-47039
CWE-ID:
CWE-426 - Untrusted Search Path
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to usage of an untrusted search path. An attacker with limited privileges can exploit this behavior by placing cmd.exe in locations with weak permissions, such as C:\ProgramData.
The vulnerability affects Windows installations only.
Install updates from vendor's website.
Vulnerable software versionsPerl: 5.38.0
External linkshttp://metacpan.org/release/PEVANS/perl-5.38.1/view/pod/perldelta.pod
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) Stack-based buffer overflow
EUVDB-ID: #VU83507
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-48522
CWE-ID:
CWE-121 - Stack-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 S_find_uninit_var() function in sv.c. A remote attacker can pass specially crafted input to the application, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPerl: 5.34.0 - 5.39.4
External linkshttp://github.com/Perl/perl5/blob/79a7b254d85a10b65126ad99bf10e70480569d68/sv.c#L16336-L16345
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.
