NULL pointer dereference in LibOFX - CVE-2019-9656

Vulnerability identifier: #VU36079

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-9656

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to a NULL pointer dreference error in file lib/ofx_sgml.cpp, as demonstrated by ofxdump. A remote attacker can perform a denial of service (DoS) attack.

LibOFX
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
Fedora
SUSE Linux Enterprise Workstation Extension 12
Ubuntu
libofx
libofx-debuginfo
libofx-debugsource
libofx-devel
libofx6-debuginfo
libofx6
libofx-dev (Ubuntu package)
libofx6 (Ubuntu package)
ofx (Ubuntu package)

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

libofx - update to 0.9.9-3.el7
libofx-debuginfo - update to 0.9.9-3.10.1
libofx-debugsource - update to 0.9.9-3.10.1
libofx-devel - update to 0.9.9-3.10.1
libofx - update to 0.9.9-3.10.1
libofx6-debuginfo - update to 0.9.9-3.10.1
libofx6 - update to 0.9.9-3.10.1
libofx-dev (Ubuntu package) - update to 1:0.9.10-1+deb8u2build0.16.04.1
libofx6 (Ubuntu package) - update to 1:0.9.10-1+deb8u2build0.16.04.1
ofx (Ubuntu package) - update to 1:0.9.10-1+deb8u2build0.16.04.1

• https://github.com/libofx/libofx/issues/22
• https://github.com/TeamSeri0us/pocs/tree/master/libofx
• https://lists.debian.org/debian-lts-announce/2019/11/msg00021.html

• NULL pointer dereference in GNU LibOFX
• SUSE update for libofx
• Fedora EPEL 7 update for libofx
• Ubuntu update for libofx