[USN-7826-2] Samba vulnerabilities
[USN-7829-1] Linux kernel vulnerabilities
[USN-7829-2] Linux kernel (FIPS and Real-time) vulnerabilities
[USN-7827-1] GStreamer Base Plugins vulnerabilities
[USN-7828-1] Python LDAP vulnerabilities
[USN-7826-2] Samba vulnerabilities
==========================================================================
Ubuntu Security Notice USN-7826-2
October 20, 2025
samba vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Samba.
Software Description:
- samba: SMB/CIFS file, print, and login server for Unix
Details:
USN-7826-1 fixed vulnerabilities in Samba. This update provides the
corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu
18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
Andrew Walker discovered that Samba incorrectly initialized memory in the
vfs_streams_xattr module. An authenticated attacker could possibly use this
issue to obtain sensitive information. (CVE-2025-9640)
Igor Morgenstern discovered that Samba incorrectly handled names passed to
the WINS hook program. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2025-10230)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
samba 2:4.15.13+dfsg-0ubuntu0.20.04.8+esm1
Available with Ubuntu Pro
Ubuntu 18.04 LTS
samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm3
Available with Ubuntu Pro
Ubuntu 16.04 LTS
samba 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm4
Available with Ubuntu Pro
Ubuntu 14.04 LTS
samba 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-7826-2
https://ubuntu.com/security/notices/USN-7826-1
CVE-2025-10230, CVE-2025-9640
[USN-7829-1] Linux kernel vulnerabilities
==========================================================================
Ubuntu Security Notice USN-7829-1
October 20, 2025
linux, linux-aws, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15,
linux-ibm, linux-ibm-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15,
linux-nvidia, linux-oracle, linux-oracle-5.15, linux-xilinx-zynqmp
vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel
- linux-ibm-5.15: Linux kernel for IBM cloud systems
- linux-lowlatency-hwe-5.15: Linux low latency kernel
- linux-oracle-5.15: Linux kernel for Oracle Cloud systems
Details:
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:
- GPU drivers;
- Network drivers;
- Netlink;
(CVE-2024-26700, CVE-2025-38727, CVE-2023-52593, CVE-2024-26896)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS
linux-image-5.15.0-1059-xilinx-zynqmp 5.15.0-1059.63
linux-image-5.15.0-1078-gkeop 5.15.0-1078.86
linux-image-5.15.0-1089-ibm 5.15.0-1089.92
linux-image-5.15.0-1090-nvidia 5.15.0-1090.91
linux-image-5.15.0-1090-nvidia-lowlatency 5.15.0-1090.91
linux-image-5.15.0-1091-gke 5.15.0-1091.97
linux-image-5.15.0-1092-oracle 5.15.0-1092.98
linux-image-5.15.0-1095-aws 5.15.0-1095.102
linux-image-5.15.0-1095-aws-64k 5.15.0-1095.102
linux-image-5.15.0-1095-gcp 5.15.0-1095.104
linux-image-5.15.0-160-generic 5.15.0-160.170
linux-image-5.15.0-160-generic-64k 5.15.0-160.170
linux-image-5.15.0-160-generic-lpae 5.15.0-160.170
linux-image-5.15.0-160-lowlatency 5.15.0-160.170
linux-image-5.15.0-160-lowlatency-64k 5.15.0-160.170
linux-image-aws-5.15 5.15.0.1095.98
linux-image-aws-64k-5.15 5.15.0.1095.98
linux-image-aws-64k-lts-22.04 5.15.0.1095.98
linux-image-aws-lts-22.04 5.15.0.1095.98
linux-image-gcp-5.15 5.15.0.1095.91
linux-image-gcp-lts-22.04 5.15.0.1095.91
linux-image-generic 5.15.0.160.156
linux-image-generic-5.15 5.15.0.160.156
linux-image-generic-64k 5.15.0.160.156
linux-image-generic-64k-5.15 5.15.0.160.156
linux-image-generic-lpae 5.15.0.160.156
linux-image-generic-lpae-5.15 5.15.0.160.156
linux-image-gke 5.15.0.1091.90
linux-image-gke-5.15 5.15.0.1091.90
linux-image-gkeop 5.15.0.1078.77
linux-image-gkeop-5.15 5.15.0.1078.77
linux-image-ibm 5.15.0.1089.85
linux-image-ibm-5.15 5.15.0.1089.85
linux-image-lowlatency 5.15.0.160.138
linux-image-lowlatency-5.15 5.15.0.160.138
linux-image-lowlatency-64k 5.15.0.160.138
linux-image-lowlatency-64k-5.15 5.15.0.160.138
linux-image-nvidia 5.15.0.1090.90
linux-image-nvidia-5.15 5.15.0.1090.90
linux-image-nvidia-lowlatency 5.15.0.1090.90
linux-image-nvidia-lowlatency-5.15 5.15.0.1090.90
linux-image-oracle-5.15 5.15.0.1092.88
linux-image-oracle-lts-22.04 5.15.0.1092.88
linux-image-virtual 5.15.0.160.156
linux-image-virtual-5.15 5.15.0.160.156
linux-image-xilinx-zynqmp 5.15.0.1059.62
linux-image-xilinx-zynqmp-5.15 5.15.0.1059.62
Ubuntu 20.04 LTS
linux-image-5.15.0-1089-ibm 5.15.0-1089.92~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-1092-oracle 5.15.0-1092.98~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-160-generic 5.15.0-160.170~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-160-generic-64k 5.15.0-160.170~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-160-generic-lpae 5.15.0-160.170~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-160-lowlatency 5.15.0-160.170~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-160-lowlatency-64k 5.15.0-160.170~20.04.1
Available with Ubuntu Pro
linux-image-generic-5.15 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-generic-64k-5.15 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-generic-64k-hwe-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-generic-hwe-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-generic-lpae-5.15 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-generic-lpae-hwe-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-ibm 5.15.0.1089.92~20.04.1
Available with Ubuntu Pro
linux-image-ibm-5.15 5.15.0.1089.92~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-5.15 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-64k-5.15 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-64k-hwe-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-hwe-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-oem-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-oem-20.04b 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-oem-20.04c 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-oem-20.04d 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-oracle 5.15.0.1092.98~20.04.1
Available with Ubuntu Pro
linux-image-oracle-5.15 5.15.0.1092.98~20.04.1
Available with Ubuntu Pro
linux-image-virtual-5.15 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
linux-image-virtual-hwe-20.04 5.15.0.160.170~20.04.1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-7829-1
CVE-2023-52593, CVE-2024-26700, CVE-2024-26896, CVE-2025-38727
Package Information:
https://launchpad.net/ubuntu/+source/linux/5.15.0-160.170
https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1095.102
https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1095.104
https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1091.97
https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1078.86
https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1089.92
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-160.170
https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1090.91
https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1092.98
https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1059.63
[USN-7829-2] Linux kernel (FIPS and Real-time) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-7829-2
October 20, 2025
linux-fips, linux-aws-fips, linux-azure-fips, linux-gcp-fips,
linux-intel-iot-realtime, linux-realtime vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS
- linux-fips: Linux kernel with FIPS
- linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with
FIPS
- linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms
- linux-realtime: Linux kernel for Real-time systems
Details:
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:
- GPU drivers;
- Network drivers;
- Netlink;
(CVE-2024-26700, CVE-2025-38727, CVE-2023-52593, CVE-2024-26896)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS
linux-image-5.15.0-1087-intel-iot-realtime 5.15.0-1087.89
Available with Ubuntu Pro
linux-image-5.15.0-1094-realtime 5.15.0-1094.103
Available with Ubuntu Pro
linux-image-5.15.0-1095-aws-fips 5.15.0-1095.102+fips1
Available with Ubuntu Pro
linux-image-5.15.0-1095-gcp-fips 5.15.0-1095.104+fips1
Available with Ubuntu Pro
linux-image-5.15.0-1098-azure-fips 5.15.0-1098.107+fips1
Available with Ubuntu Pro
linux-image-5.15.0-160-fips 5.15.0-160.170+fips1
Available with Ubuntu Pro
linux-image-aws-fips 5.15.0.1095.91
Available with Ubuntu Pro
linux-image-aws-fips-5.15 5.15.0.1095.91
Available with Ubuntu Pro
linux-image-azure-fips 5.15.0.1098.83
Available with Ubuntu Pro
linux-image-azure-fips-5.15 5.15.0.1098.83
Available with Ubuntu Pro
linux-image-fips 5.15.0.160.92
Available with Ubuntu Pro
linux-image-fips-5.15 5.15.0.160.92
Available with Ubuntu Pro
linux-image-gcp-fips 5.15.0.1095.85
Available with Ubuntu Pro
linux-image-gcp-fips-5.15 5.15.0.1095.85
Available with Ubuntu Pro
linux-image-intel-iot-realtime 5.15.0.1087.91
Available with Ubuntu Pro
linux-image-intel-iot-realtime-5.15 5.15.0.1087.91
Available with Ubuntu Pro
linux-image-realtime 5.15.0.1094.98
Available with Ubuntu Pro
linux-image-realtime-5.15 5.15.0.1094.98
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-7829-2
https://ubuntu.com/security/notices/USN-7829-1
CVE-2023-52593, CVE-2024-26700, CVE-2024-26896, CVE-2025-38727
Package Information:
https://launchpad.net/ubuntu/+source/linux-aws-fips/5.15.0-1095.102+fips1
https://launchpad.net/ubuntu/+source/linux-azure-fips/5.15.0-1098.107+fips1
https://launchpad.net/ubuntu/+source/linux-fips/5.15.0-160.170+fips1
https://launchpad.net/ubuntu/+source/linux-gcp-fips/5.15.0-1095.104+fips1
https://launchpad.net/ubuntu/+source/linux-intel-iot-realtime/5.15.0-1087.89
https://launchpad.net/ubuntu/+source/linux-realtime/5.15.0-1094.103
[USN-7827-1] GStreamer Base Plugins vulnerabilities
==========================================================================
Ubuntu Security Notice USN-7827-1
October 20, 2025
gst-plugins-base1.0 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in GStreamer Base Plugins.
Software Description:
- gst-plugins-base1.0: GStreamer plugins
Details:
Shaun Mirani discovered that GStreamer Base Plugins did not correctly
handle certain memory operations. An attacker could possibly use this issue
to cause a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
libgstreamer-plugins-base1.0-0 1.16.3-0ubuntu1.4+esm1
Available with Ubuntu Pro
libgstreamer-plugins-base1.0-dev 1.16.3-0ubuntu1.4+esm1
Available with Ubuntu Pro
Ubuntu 18.04 LTS
libgstreamer-plugins-base1.0-0 1.14.5-0ubuntu1~18.04.3+esm2
Available with Ubuntu Pro
libgstreamer-plugins-base1.0-dev 1.14.5-0ubuntu1~18.04.3+esm2
Available with Ubuntu Pro
Ubuntu 16.04 LTS
libgstreamer-plugins-base1.0-0 1.8.3-1ubuntu0.3+esm3
Available with Ubuntu Pro
libgstreamer-plugins-base1.0-dev 1.8.3-1ubuntu0.3+esm3
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-7827-1
CVE-2025-47806, CVE-2025-47807, CVE-2025-47808
[USN-7828-1] Python LDAP vulnerabilities
==========================================================================
Ubuntu Security Notice USN-7828-1
October 20, 2025
python-ldap vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 25.10
- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in Python LDAP.
Software Description:
- python-ldap: LDAP interface module for Python
Details:
It was discovered that Python LDAP incorrectly handled special characters
in the special character filtering function. A remote attacker could
possibly use this issue to perform LDAP injection attacks.
(CVE-2025-61911)
Arad Inbar discovered that Python LDAP incorrectly escaped NUL character
bytes. An attacker could possibly use this issue to cause a denial of
service. (CVE-2025-61912)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 25.10
python3-ldap 3.4.4-1ubuntu0.25.10.1
Ubuntu 25.04
python3-ldap 3.4.4-1ubuntu0.25.04.1
Ubuntu 24.04 LTS
python3-ldap 3.4.4-1ubuntu0.24.04.1
Ubuntu 22.04 LTS
python3-ldap 3.2.0-4ubuntu7.2
Ubuntu 20.04 LTS
python3-ldap 3.2.0-4ubuntu2.1+esm1
Available with Ubuntu Pro
Ubuntu 18.04 LTS
python-ldap 3.0.0-1ubuntu0.2+esm1
Available with Ubuntu Pro
python3-ldap 3.0.0-1ubuntu0.2+esm1
Available with Ubuntu Pro
Ubuntu 16.04 LTS
python-ldap 2.4.22-0.1ubuntu0.1~esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-7828-1
CVE-2025-61911, CVE-2025-61912
Package Information:
https://launchpad.net/ubuntu/+source/python-ldap/3.4.4-1ubuntu0.25.10.1
https://launchpad.net/ubuntu/+source/python-ldap/3.4.4-1ubuntu0.25.04.1
https://launchpad.net/ubuntu/+source/python-ldap/3.4.4-1ubuntu0.24.04.1
https://launchpad.net/ubuntu/+source/python-ldap/3.2.0-4ubuntu7.2
