Resource exhaustion in RSA BSAFE Micro Edition Suite and Crypto-C Micro Edition

1) Resource exhaustion

EUVDB-ID: #VU21464

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-11056

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to improper parsing of ASN.1 data. A remote authenticated attacker can use a specially constructed ASN.1 data, trigger resource exhaustion and perform a denial of service (DoS) attack.

This vulnerability affects the following versions of RSA BSAFE Crypto-C Micro Edition:

• versions prior to 4.0.5.3 (in 4.0.x)
  

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RSA BSAFE Crypto-C: before 4.0.5.3

RSA BSAFE Micro Edition Suite: 4.1.0 - 4.1.6

CPE2.3

• cpe:2.3:a:dell:rsa_bsafe_crypto-c:*:*:*:*:*:*:*:*
• cpe:2.3:a:dell:rsa_bsafe_micro_edition_suite:4.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:dell:rsa_bsafe_micro_edition_suite:4.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:dell:rsa_bsafe_micro_edition_suite:4.1.4:*:*:*:*:*:*:*

External links

http://seclists.org/fulldisclosure/2018/Aug/46
http://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.