Multiple vulnerabilities in CUPS

Published: 2019-08-16 | Updated: 2019-11-27

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-8696 CVE-2019-8675
CWE-ID	CWE-121
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software Subscribe	CUPS Server applications / Other server solutions
Vendor	Apple Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU23040

Risk: High

CVSSv3.1: 7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-8696

CWE-ID: CWE-121 - Stack-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 when processing SNMP requests within the asn1_get_packed() function in cups/snmp.c. A remote attacker with access to the the SNMP service can send a specially crafted request to the application, trigger a stack-based buffer oveflow 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

CUPS: 2.2.0 - 2.2.11

External links

http://github.com/apple/cups/commit/2c030c7a06e0c2b8227c7e85f5c58dfb339731d0
http://github.com/apple/cups/commit/f24e6cf6a39300ad0c3726a41a4aab51ad54c109
http://github.com/apple/cups/releases/tag/v2.2.12

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

2) Stack-based buffer overflow

EUVDB-ID: #VU23042