Heap-based buffer overflow in Randombit Botan



Published: 2016-05-13 | Updated: 2022-02-09
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-2195
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Botan
Universal components / Libraries / Libraries used by multiple products

Debian Linux
Operating systems & Components / Operating system

Vendor Randombit
Debian

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU40299

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2195

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Integer overflow in the PointGFp constructor in Botan before 1.10.11 and 1.11.x before 1.11.27. A remote attacker can use a crafted ECC point to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Botan: 1.11.0 - 1.11.26

Debian Linux: 1.11.0 - 8.0

External links

http://botan.randombit.net/security.html
http://marc.info/?l=botan-devel&m=145435148602911&w=2
http://www.debian.org/security/2016/dsa-3565
http://security.gentoo.org/glsa/201612-38


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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