Use-after-free error in py-openssl (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-1000807
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 py-openssl (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use-after-free error

EUVDB-ID: #VU15784

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-2018-1000807

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists due to use-after-free error during improper handling of X509 objects. A remote unauthenticated attacker can send a specially crafted request that submits malicious input, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install update from vendor's website.

Vulnerable software versions

py-openssl (Alpine package): 17.0.0-r0 - 17.2.0-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=8f415a0a3b8b2ae65d9e9655989d72f7e0095ee0
https://git.alpinelinux.org/aports/commit/?id=ea1401740c16f624416075bdeeae6ffa0158f7a2


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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