Input validation error in Genivia gSOAP

1) Input validation error

EUVDB-ID: #VU32076

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-9765

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can execute arbitrary code or cause a denial of service (stack-based buffer overflow and application crash) via a large XML document, aka Devil's Ivy.

Mitigation

Update to version 2.8.48.

Vulnerable software versions

gSOAP: 2.8.0 - 2.8.47

CPE2.3

• cpe:2.3:a:genivia:gsoap:2.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:genivia:gsoap:2.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:genivia:gsoap:2.8.2:*:*:*:*:*:*:*

External links

https://blog.senr.io/blog/devils-ivy-flaw-in-widely-used-third-party-code-impacts-millions
https://blog.senr.io/devilsivy.html
https://www.securityfocus.com/bid/99868
https://bugzilla.redhat.com/show_bug.cgi?id=1472807
https://bugzilla.suse.com/show_bug.cgi?id=1049348
https://www.genivia.com/advisory.html#Security_advisory:_CVE-2017-9765_bug_in_certain_versions_of_gSOAP_2.7_up_to_2.8.47_%28June_21,_2017%29
https://www.genivia.com/changelog.html#Version_2.8.48_upd_%2806/21/2017%29

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.