CVE-2018-20452
8.8
HIGH
CVSS 3.1
EPSS 0.40%
Description
The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.
How to fix CVE-2018-20452
To remediate CVE-2018-20452, upgrade the affected package to a fixed version below.
- Debian/r-cran-readxl—upgrade to 1.2.0.9000-1 or later
Is CVE-2018-20452 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.2.0.9000-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |