Buffer overflow in libmwaw - CVE-2017-9433
Published: June 5, 2017 / Updated: June 5, 2017
Vulnerability identifier: #VU6898
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-9433
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error with MsWrd1Parser::readFootnoteCorrespondance() function in lib/MsWrd1Parser.cxx. A remote unauthenticated attacker can create a specially crafted MS Word file, trick the victim into opening it using the affected library, trigger heap-based buffer overflow and execute arbitrary code on the target system with privileges of the current user.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
libmwaw
Debian Linux
Ubuntu
Fedora
libmwaw
Debian Linux
Ubuntu
Fedora
libmwaw
How to mitigate CVE-2017-9433
Install update from vendor's repository (version issued after 2017-04-08).
libmwaw - addressed in versions 0.3.11-3.fc24, 0.3.11-3.fc25, 0.3.11-3.fc26, 0.3.12-1.fc25