CVE-2020-10711 (Medium) detected in linuxlinux-4.19.236

[mend-bolt-for-github[bot]]

CVE-2020-10711 - Medium Severity Vulnerability

Vulnerable Library - linuxlinux-4.19.236

The Linux Kernel

Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux

Found in HEAD commit: 54b264314dfb82b24cefb6c37240db4e7a8f34bc

Found in base branch: master

Vulnerable Source Files (2)

/net/netlabel/netlabel_kapi.c /net/netlabel/netlabel_kapi.c

Vulnerability Details

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.

Publish Date: 2020-05-22

URL: CVE-2020-10711

CVSS 3 Score Details (5.9)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10711

Release Date: 2020-05-22

Fix Resolution: v5.7-rc6

---

Step up your Open Source Security Game with Mend here

[mend-bolt-for-github[bot]]

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.

[mend-bolt-for-github[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.