Buffer Over-read in openssl (Alpine package)



Published: 2016-09-19
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-2176
CWE-ID CWE-126
Exploitation vector Network
Public exploit N/A
Vulnerable software
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openssl (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer Over-read

EUVDB-ID: #VU642

Risk: Low

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-2016-2176

CWE-ID: CWE-126 - Buffer over-read

Exploit availability: No

Description

The vulnerability allows a remote to cause buffer over-read on the target system.

The weakness exists due to overread in applications using the X509_NAME_oneline() function on EBCDIC systems. The vulnerability leads to arbitrary stack data return to the buffer.

Successful exploitation of the weakness results in buffer over-read on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

openssl (Alpine package): 1.0.1-r0 - 1.0.2h-r2-r0

External links

http://git.alpinelinux.org/aports/commit/?id=346532027d2b8b8d5cac13a2b7d86820dfaf34b7
http://git.alpinelinux.org/aports/commit/?id=6ea715958d6486933e7cc3ca163e3d0691c9629d
http://git.alpinelinux.org/aports/commit/?id=70b8770d37d514044077c7258c0e6e81aeeee5fe
http://git.alpinelinux.org/aports/commit/?id=7b3b75b5c977b3a6fa91c6a48349d55fc7e31663


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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