VYPR
← All advisories
Medium severity5.9NVD Advisory· Published May 22, 2020· Updated Jun 17, 2026

CVE-2020-10711

CVE-2020-10711

Description

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

197

Patches

Vulnerability mechanics

References

13

News mentions

0

No linked articles in our index yet.