CVE-2020-27819 — NULL Pointer Dereference in Project Libxls

CWE-476 — NULL Pointer Dereference4 documents4 sources
Severity
5.5MEDIUMNVD
EPSS
0.3%
top 49.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Libxls Project LibxlsDebian R-cran-readxl
Timeline
PublishedFeb 23
Latest updateMay 24

Description

An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶CVEListV5libxls_project/libxlslibxls before 1.6.2

🔴Vulnerability Details

2
GHSA
GHSA-fp3r-w9w2-jg2f: An issue was discovered in libxls before and including 1↗2022-05-24
▶
OSV
CVE-2020-27819: An issue was discovered in libxls before and including 1↗2021-02-23
▶

📋Vendor Advisories

1
Debian
CVE-2020-27819: r-cran-readxl - An issue was discovered in libxls before and including 1.6.1 when reading Micros...↗2020
▶
CVE-2020-27819 — NULL Pointer Dereference | cvebase