Fedora EPEL 10.0 update for strongswan



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-41913
CVE-2023-26463
CWE-ID CWE-119
CWE-825
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

strongswan
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU83305

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-41913

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 in the TKM-backed version of the charon IKE daemon due to a missing check for DH Public Values in charon-tkm. A remote attacker can send specially crafted data to the application, 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

Fedora: 10

strongswan: before 5.9.14-5.el10_0

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2024-196be160cb


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) Expired pointer dereference

EUVDB-ID: #VU79677

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-26463

CWE-ID: CWE-825 - Expired pointer dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an error in libtls implementation that treats the public key from the peer's certificate as trusted, even if the certificate can't be verified successfully. A remote attacker can supply a self-signed certificate to a server that authenticates clients with a TLS-based EAP method like EAP-TLS, trigger an expired pointer dereference and crash the server or execute arbitrary code.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 10

strongswan: before 5.9.14-5.el10_0

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2024-196be160cb


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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