#VU12760 Heap-based buffer over-read in LibOFX - CVE-2017-14731

Vulnerability identifier: #VU12760

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14731

CWE-ID: CWE-126

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibOFX
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description

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

The weakness exists in ofx_proc_file in ofx_preproc.cpp due to a boundary error. A remote attacker can trick the victim into opening a specially crafted file, as demonstrated by an ofxdump call, trigger heap-based buffer over-read and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LibOFX: 0.9.12

---

External links
https://github.com/libofx/libofx/issues/10

---

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.