CVE-2021-36087
low-risk
Published 2021-07-01
The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). This occurs because there is sometimes a lack of checks for invalid statements in an optional block.
Do I need to act?
-
0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10
Low
LOCAL
/ LOW complexity
Affected Products (2)
Selinux
Affected Vendors
References (12)
Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-585.ya...
Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-585.ya...
20
/ 100
low-risk
Severity
13/34 · Low
Exploitability
0/34 · Minimal
Exposure
7/34 · Low