NULL pointer dereference in Libxls Project
CVE-2021-27836
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.012 (65.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Libxls Project — versions 1.6.2
- Fedoraproject Fedora — versions 33, 34, 35
Weakness classification (CWE)
References
- github.com/libxls/libxls/issues/94 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-27836?
- CVE-2021-27836 is a medium-severity vulnerability in Libxls Project, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2021-11-03.
- How severe is CVE-2021-27836?
- Medium severity. CVSS v3 base score is 6.5 out of 10.