Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2018-20450

Double Free

Published: Dec 25, 2018 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-20450
CWEhttps://cwe.mitre.org/data/definitions/415.html

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

Weakness

The product calls free() twice on the same memory address.

Affected Software

NameVendorStart VersionEnd Version
LibxlsLibxls_project1.4.0 (including)1.4.0 (including)
R-cran-readxlUbuntubionic*
R-cran-readxlUbuntucosmic*
R-cran-readxlUbuntudisco*
R-cran-readxlUbuntueoan*
R-cran-readxlUbuntufocal*
R-cran-readxlUbuntugroovy*
R-cran-readxlUbuntuhirsute*
R-cran-readxlUbuntuimpish*
R-cran-readxlUbuntukinetic*
R-cran-readxlUbuntulunar*
R-cran-readxlUbuntumantic*
R-cran-readxlUbuntuoracular*
R-cran-readxlUbuntuplucky*
R-cran-readxlUbuntuxenial*

Potential Mitigations

References

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