Gentoo update for Perl



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-36770
CVE-2023-31486
CVE-2023-47038
CWE-ID CWE-427
CWE-295
CWE-193
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Gentoo Linux
Operating systems & Components / Operating system

dev-lang/perl
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Insecure library loading

EUVDB-ID: #VU55804

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-36770

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

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a logic error in the Encode.pm script. A local user can place a malicious library into the current working directory and escalate privileges on the system.

Mitigation

Update the affected packages.
dev-lang/perl to version: 5.38.2

Vulnerable software versions

Gentoo Linux: All versions

dev-lang/perl: before 5.38.2

CPE2.3 External links

https://security.gentoo.org/glsa/202411-09


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.

2) Improper Certificate Validation

EUVDB-ID: #VU75606

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-31486

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to missing verification of the TLS certificate. A remote attacker can perform MitM attack and trick the application into downloading a malicious file.

Mitigation

Update the affected packages.
dev-lang/perl to version: 5.38.2

Vulnerable software versions

Gentoo Linux: All versions

dev-lang/perl: before 5.38.2

CPE2.3 External links

https://security.gentoo.org/glsa/202411-09


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Off-by-one

EUVDB-ID: #VU83508

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-47038

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

The 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.

Mitigation

Update the affected packages.
dev-lang/perl to version: 5.38.2

Vulnerable software versions

Gentoo Linux: All versions

dev-lang/perl: before 5.38.2

CPE2.3 External links

https://security.gentoo.org/glsa/202411-09


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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