CVE-2021-27836 — NULL Pointer Dereference in Project Libxls

CWE-476 — NULL Pointer Dereference4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 37.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Fedoraproject FedoraLibxls Project LibxlsDebian R-cran-readxl
Timeline
PublishedNov 3
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

Also affects: Fedora 33, 34, 35

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-gvjp-hxqq-9fc2: An issue was discoverered in in function xls_getWorkSheet in xls↗2022-05-24
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OSV
CVE-2021-27836: An issue was discoverered in in function xls_getWorkSheet in xls↗2021-11-03
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📋Vendor Advisories

1
Debian
CVE-2021-27836: r-cran-readxl - An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6...↗2021
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