Heap-based buffer overflow in redis (Alpine package)

1) Heap-based buffer overflow

EUVDB-ID: #VU19167

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10192

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 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 update from vendor's website.

Vulnerable software versions

redis (Alpine package): 4.0.11-r0 - 4.0.13-r0

External links

http://git.alpinelinux.org/aports/commit/?id=1dd896feae826bd48b11a268fd8837461aa2203c
http://git.alpinelinux.org/aports/commit/?id=5865ea3a9fe4671363312ee4f54742fb2f8f2b5f
http://git.alpinelinux.org/aports/commit/?id=41680f61f0db5a634cbfee6cc6cca3c7f3605a44
http://git.alpinelinux.org/aports/commit/?id=19d0ff808d7cf9b633c4a1bc68bcfecffc7c39aa
http://git.alpinelinux.org/aports/commit/?id=1e82a561f3dcaf2e66dae0979c356197ce0446aa
http://git.alpinelinux.org/aports/commit/?id=98f4966a45d6e816ecc6c27c6eda161ce1fb7f67

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.