Double free memory error in gd (Alpine package)

1) Double free memory error

EUVDB-ID: #VU12094

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-6362

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The weakness exists due to double free memory error in the gdImagePngPtr function. A remote attacker can submit vectors related to a palette with no colors and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

gd (Alpine package): 2.2.4-r0

CPE2.3

• cpe:2.3:o:alpine:gd_alpine_package:2.2.4-r0:*:*:*:*:alpine_linux:*:3.3

External links

https://git.alpinelinux.org/aports/commit/?id=c77ede20873cee5072a80b7d96cfdd045cc1bc7f
https://git.alpinelinux.org/aports/commit/?id=d6da87295c4d40896255b08ee5b73d8199e352cb
https://git.alpinelinux.org/aports/commit/?id=0dfd5e85b10c2aba69314b961c7023dcce1d1514

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.