Improper input validation in Randombit Botan

1) Improper input validation

EUVDB-ID: #VU6398

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-2801

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to disclose potentially sensitive information or cause (DoS) condition.

The vulnerability exists due to improper validation of X.509 certificate fields when processing a specially formed DN. A remote attacker can submit a crafted X.509 certificate to affected client or server software, bypass security restrictions and cause out of bound memory read.

Successful exploitation of the vulnerability may result in information disclosure or denial of service on the targeted system.

Mitigation

Update to version 2.1.0 or 1.10.16.

Vulnerable software versions

Botan: 0.7.0 - 1.6.0

CPE2.3

• cpe:2.3:a:randombit:botan:0.7.10:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:0.8.7:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:0.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.1.13:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.2.8:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.3.14:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.4.12:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.5.13:*:*:*:*:*:*:*
• cpe:2.3:a:randombit:botan:1.6.0:*:*:*:*:*:*:*

External links

https://botan.randombit.net/security.html

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.