Heap-based buffer overflow in Red Hat OpenStack 8.0 packages

1) Heap-based buffer overflow

EUVDB-ID: #VU33047

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2015-8863

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 Off-by-one error in the tokenadd function in jv_parse.c in jq. A remote attacker can use a long JSON-encoded number 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 updates from vendor's website.

Vulnerable software versions

jq (Red Hat package): before 1.3-3.el7ost

Red Hat OpenStack: before 8

CPE2.3

• cpe:2.3:a:red_hat:jq_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:a:red_hat:red_hat_openstack:*:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2016:1106

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.