USN-7506-4: linux-lts-xenial Ubuntu

Published
Published 13-05-2025Last modified 30-10-2026

Vulnerability summary

USN-7506-4 is a vulnerability in linux-lts-xenial Ubuntu 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 32 · Downstream 0 · Related 32
CVE-2021-46959CVE-2021-47150CVE-2021-47163CVE-2021-47191CVE-2021-47219CVE-2021-47245

Timeline

  1. 13-05-2025
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

linux-lts-xenial vulnerabilities Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Hardware crypto device drivers; - GPU drivers; - IIO subsystem; - Media drivers; - Network drivers; - SCSI subsystem; - SPI subsystem; - USB Gadget drivers; - Ceph distributed file system; - File systems infrastructure; - JFS file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - NILFS2 file system; - SMB network file system; - CAN network layer; - IPv6 networking; - MAC80211 subsystem; - Netfilter; - Netlink; - Network traffic control; - SCTP protocol; - TIPC protocol; (CVE-2024-46771, CVE-2021-47500, CVE-2024-56631, CVE-2021-47219, CVE-2021-47163, CVE-2024-50256, CVE-2024-56650, CVE-2024-46780, CVE-2021-47506, CVE-2024-26996, CVE-2025-21971, CVE-2021-47587, CVE-2021-47245, CVE-2024-56598, CVE-2021-46959, CVE-2024-26974, CVE-2024-56642, CVE-2023-52741, CVE-2021-47150, CVE-2024-53173, CVE-2024-26915, CVE-2024-36934, CVE-2024-56770, CVE-2024-53063, CVE-2021-47191, CVE-2024-26689, CVE-2024-53066, CVE-2024-35864, CVE-2024-50237, CVE-2024-53140, CVE-2024-49944)

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.

Ubuntu1 product
  • linux-lts-xenial< 4.4.0-268.302~14.04.1

1 vendor · 1 product

References

33 links
Show all 33 references