Fedora 39 update for python-cryptography



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-23931
CWE-ID CWE-388
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

python-cryptography
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Error Handling

EUVDB-ID: #VU72036

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-23931

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows an attacker to misuse Python API.

The vulnerability exists due to a soundness bug within the Cipher.update_into function, which can allow immutable objects (such as bytes) to be mutated. A malicious programmer can misuse Python API to introduce unexpected behavior into the application.

Mitigation

Upgrade python-cryptography to version 37.0.2-8.fc39.

Vulnerable software versions

Fedora: 39

python-cryptography: before 37.0.2-8.fc39

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-51706f88e3


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.



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