#VU19167 Heap-based buffer overflow in Redis - CVE-2019-10192

Vulnerability identifier: #VU19167

Vulnerability risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-10192

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Redis
Server applications / Database software

Vendor: Salvatore Sanfilippo

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 Redis hyperloglog data structure. A remote attacker can carefully corrupt hyperloglog using the SETRANGE command, 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

Redis: 3.2.0 - 5.0.3

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10192
https://raw.githubusercontent.com/antirez/redis/3.2/00-RELEASENOTES
https://raw.githubusercontent.com/antirez/redis/4.0/00-RELEASENOTES
https://raw.githubusercontent.com/antirez/redis/5.0/00-RELEASENOTES
https://seclists.org/bugtraq/2019/Jul/19

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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.