CVE-2021-36086
libsepol: use-after-free in cil_reset_classpermission()
Severity Score
3.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set and cil_reset_classperms_list).
El compilador CIL en SELinux versión 3.2, presenta un uso de la memoria previamente liberada en la función cil_reset_classpermission (llamado desde cil_reset_classperms_set y cil_reset_classperms_list)
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-07-01 CVE Reserved
- 2021-07-01 CVE Published
- 2023-09-22 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-416: Use After Free
CAPEC
References (6)
URL | Tag | Source |
---|---|---|
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yaml | Third Party Advisory |
URL | Date | SRC |
---|---|---|
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177 | 2024-08-04 |
URL | Date | SRC |
---|---|---|
https://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8 | 2023-11-07 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Selinux Project Search vendor "Selinux Project" | Selinux Search vendor "Selinux Project" for product "Selinux" | - | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
|