Fedora EPEL 8 update for tor



Published: 2023-08-16
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-23589
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Operating systems & Components / Operating system

tor
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU71194

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23589

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a logical error within the process_socks4_request() function in src/core/proto/proto_socks.c, which leaks DNS queries in case the "SafeSocks=1". A remote attacker can gain unauthorized access to sensitive information.

Mitigation

Upgrade tor to version 0.4.7.13-1.el8.

Vulnerable software versions

Fedora: 8

tor: before 0.4.7.13-1.el8

External links

http://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-c8ddd02f9e


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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