Selinux
CVE-2020-10751
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V4 - API and Web Service Acceptance of extraneous untrusted data
|
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAI
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. Rated medium severity (CVSS 6.1), this vulnerability is low attack complexity.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Technical ContextAI · show details
This vulnerability is classified under CWE-349. A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing. Affected products include: Kernel Selinux, Redhat Enterprise Linux Server. Version information: version 5.7.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
The get_rpm_nvr_by_file_path_temporary function in util.py in setroubleshoot before 3.2.22 allows remote attackers to ex
SELinux policycoreutils allows local users to execute arbitrary commands outside of the sandbox via a crafted TIOCSTI io
The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermissio
The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check
The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __verify_map_perm_classperm
The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set
Missing authorization in the seunshare utility (policycoreutils through 3.10) permits a low-privileged local user runnin
selinux-policy when sysctl fs.protected_hardlinks are set to 0 allows local users to cause a denial of service (SSH logi
Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity
NVD
CVE.org
EPSS
GitHub PoC
Exploit-DB