MGASA-2021-0409: kernel Mageia

Published

Published 23-08-2021Last modified 16-04-2026

Vulnerability summary

MGASA-2021-0409 is a vulnerability in kernel Mageia with no CVSS score yet.

Priority

Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

Not scored

010

No CVSS score recorded

EPSS scoreNot scoredRisk metrics not yet published.

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 5 · Downstream 0

CVE-2020-3702 CVE-2021-3653 CVE-2021-3656 CVE-2021-38166 CVE-2021-38205

Timeline

23-08-2021
PublishedVulnerability first disclosed.
16-04-2026
Last modifiedVulnerability information updated.

Description

Updated kernel packages fix security vulnerabilities This kernel update is based on upstream 5.10.60 and fixes at least the following security issues: Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic in ath9k (CVE-2020-3702). A missing validation of the "int_ctl" VMCB field allows a malicious L1 guest to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. The L2 guest is able to write to a limited but still relatively large subset of the host physical memory, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape (CVE-2021-3653). A missing validation of the "virt_ext" VMCB field and allows a malicious L1 guest to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. Under these circumstances, the L2 guest is able to run VMLOAD/VMSAVE unintercepted, and thus read/write portions of the host physical memory, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape (CVE-2021-3656). In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket (CVE-2021-38166). drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (CVE-2021-38205). Other fixes in this update: - cfi_cmdset_0002: fix crash when erasing/writing AMD cards For other upstream fixes, see the referenced changelogs.

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Mageia3 products

kernel< 5.10.60-2.mga8
kmod-virtualbox< 6.1.26-1.2.mga8
kmod-xtables-addons< 3.18-1.20.mga8

1 vendor · 3 products

References

6 links

Related vulnerabilities

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