Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2021-27836

NULL Pointer Dereference

Published: Nov 03, 2021 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/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
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-27836
CWEhttps://cwe.mitre.org/data/definitions/476.html

An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6.2, allows attackers to cause a denial of service, via a crafted XLS file.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

NameVendorStart VersionEnd Version
LibxlsLibxls_project1.6.2 (including)1.6.2 (including)
R-cran-readxlUbuntubionic*
R-cran-readxlUbuntufocal*
R-cran-readxlUbuntuhirsute*
R-cran-readxlUbuntuimpish*
R-cran-readxlUbuntukinetic*
R-cran-readxlUbuntulunar*
R-cran-readxlUbuntumantic*
R-cran-readxlUbuntuoracular*
R-cran-readxlUbuntuplucky*
R-cran-readxlUbuntutrusty*
R-cran-readxlUbuntuxenial*

Potential Mitigations

References

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