Input validation error in Debian Linux



Published: 2016-05-13 | Updated: 2020-08-09
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-2194
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Debian Linux
Operating systems & Components / Operating system

Botan
Universal components / Libraries / Libraries used by multiple products

Vendor Debian
Randombit

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU40300

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2194

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The ressol function in Botan before 1.10.11 and 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (infinite loop) via unspecified input to the OS2ECP function, related to a composite modulus.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Debian Linux: 8.0

Botan: 1.11.0 - 8.0

External links

http://botan.randombit.net/security.html
http://marc.info/?l=botan-devel&m=145435148602911&w=2
http://marc.info/?l=botan-devel&m=145449001708138&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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