NULL pointer dereference in IBM FlashSystem models 840 and 900

1) NULL pointer dereference

EUVDB-ID: #VU6841

Risk: Medium

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

CVE-ID: CVE-2017-7502

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to NULL pointer dereference error in NSS since 3.24.0 when processing empty SSLv2 messages, received from clients. A remote attacker can send specially crafted request to vulnerable service and perform denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FlashSystem 840 9840-AE1 & 9843-AE1: All versions

FlashSystem 900 9840-AE2 and 9843-AE2: All versions

CPE2.3

• cpe:2.3:a:ibm_corporation:flashsystem_840_9840-ae1_and_9843-ae1:*:*:*:*:*:*:*:*
• cpe:2.3:h:ibm_corporation:flashsystem_900_9840-ae2_and_9843-ae2:*:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/697867

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.