Fedora 21 update for bzr



| Updated: 2025-04-24
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-7440
CWE-ID CWE-19
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

bzr
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Data Handling

EUVDB-ID: #VU40247

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-7440

CWE-ID: CWE-19 - Data Handling

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 21

bzr: before 2.6.0-7.fc21

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2015-11995


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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