PT-2017-12779 · Libfpx · Libfpx

Agostino Sarubbo · Published 2017-08-28 · Updated 2017-09-01 · CVE-2017-12923

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libfpx version 1.3.1 p6

Description The issue allows remote attackers to cause a denial of service, specifically a NULL pointer dereference, by providing a crafted fpx image. This is due to a problem in the OLEStream::WriteVT LPSTR function in olestrm.cpp.

Recommendations For libfpx version 1.3.1 p6, consider avoiding the use of the OLEStream::WriteVT LPSTR function until a patch is available. As a temporary workaround, restrict the processing of fpx images from untrusted sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2017-12923

Affected Products

Libfpx

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2017-12923 · Security Note
• https://osv.dev/vulnerability/CVE-2017-12923 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/08/17/9 · Note
• https://blogs.gentoo.org/ago/2017/08/09/libfpx-null-pointer-dereference-in-olestreamwritevt_lpstr-olestrm-cpp · Note