Stack-based buffer overflow in Redis

1) Stack-based buffer overflow

EUVDB-ID: #VU32357

Risk: Medium

CVSSv3.1: 6.5 [AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-8080

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 within the getnum function in lua_struct.c when processing a large number, which triggers a stack-based buffer overflow. A remote unauthenticated attacker can trigger stack-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

Update to version 2.8.24.

Vulnerable software versions

Redis: 2.8.0 - 2.8.23

External links

http://lists.opensuse.org/opensuse-updates/2016-05/msg00126.html
http://rhn.redhat.com/errata/RHSA-2016-0095.html
http://rhn.redhat.com/errata/RHSA-2016-0096.html
http://rhn.redhat.com/errata/RHSA-2016-0097.html
http://www.debian.org/security/2015/dsa-3412
http://www.openwall.com/lists/oss-security/2015/11/06/2
http://www.openwall.com/lists/oss-security/2015/11/06/4
http://www.securityfocus.com/bid/77507
http://github.com/antirez/redis/issues/2855
http://raw.githubusercontent.com/antirez/redis/2.8/00-RELEASENOTES
http://raw.githubusercontent.com/antirez/redis/3.0/00-RELEASENOTES
http://security.gentoo.org/glsa/201702-16

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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