Buffer over-read in memcached (Alpine package)

1) Buffer over-read

EUVDB-ID: #VU11319

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-0179

CWE-ID: CWE-126 - Buffer over-read

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to boundary error in the process_bin_delete function when running in verbose mode. A remote attacker can cause the service to crash via a request to delete a key, which does not account for the lack of a null terminator in the key and triggers buffer over-read when printing to stderr.

Mitigation

Install update from vendor's website.

Vulnerable software versions

memcached (Alpine package): 1.4.13-r0 - 1.4.15-r4

CPE2.3

• cpe:2.3:o:alpine:memcached_alpine_package:1.4.13-r0:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:o:alpine:memcached_alpine_package:1.4.15-r0:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:o:alpine:memcached_alpine_package:1.4.15-r1:*:*:*:*:alpine_linux:*:2.4

External links

https://git.alpinelinux.org/aports/commit/?id=01c5af01dadb92ad64c468444fcd4b58e00ccdc9
https://git.alpinelinux.org/aports/commit/?id=4f87afbb1812c23f84b54f5cebde5a4d1e0f1aae
https://git.alpinelinux.org/aports/commit/?id=d7b6f5f04e26c72962a98d8287cea33d4d63fa6c

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.