Use-after-free in libEMF - CVE-2020-11866
Published: September 8, 2022
Vulnerability identifier: #VU67132
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-2020-11866
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing EMF files. A remote attacker can pass a specially crafted EMF file to the application that is using the affected library, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
libEMF
openEuler
Fedora
libEMF
libEMF-devel
libEMF-debuginfo
libEMF-help
libEMF-debugsource
openEuler
Fedora
libEMF
libEMF-devel
libEMF-debuginfo
libEMF-help
libEMF-debugsource
How to mitigate CVE-2020-11866
Install updates from vendor's website.
libEMF - update to 1.0.12
libEMF - addressed in versions 1.0.12-1.fc30, 1.0.12-1.fc31
libEMF - update to 1.0.13-1
libEMF-devel - update to 1.0.13-1
libEMF-debuginfo - update to 1.0.13-1
libEMF-help - update to 1.0.13-1
libEMF-debugsource - update to 1.0.13-1
libEMF - addressed in versions 1.0.12-1.fc30, 1.0.12-1.fc31
libEMF - update to 1.0.13-1
libEMF-devel - update to 1.0.13-1
libEMF-debuginfo - update to 1.0.13-1
libEMF-help - update to 1.0.13-1
libEMF-debugsource - update to 1.0.13-1