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CVE-2019-16866

unbound: uninitialized memory accesses leads to crash via a crafted NOTIFY query

Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.

CVSS 3.1 · 7.5 High EPSS 3.5% KEV · Not listed
Vendors
Canonical Nlnetlabs
Products
Ubuntu Linux Unbound
CVE-2019-15219

kernel: null pointer dereference in drivers/usb/misc/sisusbvga/sisusb.c driver

An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/usb/misc/sisusbvga/sisusb.c driver.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 2 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 7 more
CVE-2019-15218

kernel: null pointer dereference in the drivers/media/usb/siano/smsusb.c driver

An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/media/usb/siano/smsusb.c driver.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 8 more
CVE-2019-15217

kernel: null pointer dereference in drivers/media/usb/zr364xx/zr364xx.c driver

An issue was discovered in the Linux kernel before 5.2.3. There is a NULL pointer dereference caused by a malicious USB device in the drivers/media/usb/zr364xx/zr364xx.c driver.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 9 more
CVE-2019-14250

binutils: integer overflow in simple-object-elf.c leads to a heap-based buffer overflow

An issue was discovered in GNU libiberty, as distributed in GNU Binutils 2.32. simple_object_elf_match in simple-object-elf.c does not check for a zero shstrndx value, leading to an integer overflow and resultant heap-based buffer overflow.

CVSS 3.1 · 5.5 Medium EPSS 2.3% KEV · Not listed
Vendors
Canonical Gnu Opensuse
Products
Ubuntu Linux Binutils Leap
CVE-2019-12418

tomcat: local privilege escalation

When Apache Tomcat 9.0.0.M1 to 9.0.28, 8.5.0 to 8.5.47, 7.0.0 and 7.0.97 is configured with the JMX Remote Lifecycle Listener, a local attacker without access to the Tomcat process or configuration files is able to manipulate the RMI registry to perform a man-in-the-middle attack to capture user names and passwords used to access the JMX interface. The attacker can then use these credentials to access the JMX interface and gain complete control over the Tomcat instance.

CVSS 3.1 · 7.0 High EPSS 1.2% KEV · Not listed
Vendors
Apache Canonical Debian and 4 more
Products
Tomcat Ubuntu Linux Debian Linux and 4 more
CVE-2018-1060

python: DOS via regular expression catastrophic backtracking in apop() method in pop3lib

python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in pop3lib's apop() method. An attacker could use this flaw to cause denial of service.

CVSS 3.1 · 7.5 High EPSS 5.0% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 2 more
Products
Ubuntu Linux Debian Linux Fedora and 11 more
CVE-2018-1000880

libarchive: Improper input validation in WARC parser resulting in a denial of service

libarchive version commit 9693801580c0cf7c70e862d305270a16b52826a7 onwards (release v3.2.0 onwards) contains a CWE-20: Improper Input Validation vulnerability in WARC parser - libarchive/archive_read_support_format_warc.c, _warc_read() that can result in DoS - quasi-infinite run time and disk usage from tiny file. This attack appear to be exploitable via the victim must open a specially crafted WARC file.

CVSS 3.1 · 6.5 Medium EPSS 4.1% KEV · Not listed
Vendors
Canonical Fedoraproject Libarchive and 1 more
Products
Ubuntu Linux Fedora Libarchive and 1 more
CVE-2018-1000802

python: Command injection in the shutil module

Python Software Foundation Python (CPython) version 2.7 contains a CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in shutil module (make_archive function) that can result in Denial of service, Information gain via injection of arbitrary files on the system or entire drive. This attack appear to be exploitable via Passage of unfiltered user input to the function. This vulnerability appears to have been fixed in after commit add531a1e55b0a739b0f42582f1c9747e5649ace.

CVSS 3.1 · 9.8 Critical EPSS 20.1% KEV · Not listed
Vendors
Canonical Debian Opensuse and 1 more
Products
Ubuntu Linux Debian Linux Leap and 1 more
CVE-2018-1000030

python: Heap-Buffer-Overflow and Heap-Use-After-Free in Objects/fileobject.c

Python 2.7.14 is vulnerable to a Heap-Buffer-Overflow as well as a Heap-Use-After-Free. Python versions prior to 2.7.14 may also be vulnerable and it appears that Python 2.7.17 and prior may also be vulnerable however this has not been confirmed. The vulnerability lies when multiply threads are handling large amounts of data. In both cases there is essentially a race condition that occurs. For the Heap-Buffer-Overflow, Thread 2 is creating the size for a buffer, but Thread1 is already writing to the buffer without knowing how much to write. So when a large amount of data is being processed, it is very easy to cause memory corruption using a Heap-Buffer-Overflow. As for the Use-After-Free, Thread3->Malloc->Thread1->Free's->Thread2-Re-uses-Free'd Memory. The PSRT has stated that this is not a security vulnerability due to the fact that the attacker must be able to run code, however in some situations, such as function as a service, this vulnerability can potentially be used by an attacker to violate a trust boundary, as such the DWF feels this issue deserves a CVE.

CVSS 3.1 · 3.6 Low EPSS 1.2% KEV · Not listed
Vendors
Canonical Python
Products
Ubuntu Linux Python
CVE-2016-4472

expat: Undefined behavior and pointer overflows

The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.

CVSS 3.1 · 8.1 High EPSS 11.9% KEV · Not listed
Vendors
Canonical Libexpat Project Mcafee and 1 more
Products
Ubuntu Linux Libexpat Policy Auditor and 1 more
CVE-2016-0718

expat: Out-of-bounds heap read on crafted input causing crash

Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow.

CVSS 3.1 · 9.8 Critical EPSS 13.3% KEV · Not listed
Vendors
Apple Canonical Debian and 7 more
Products
Mac Os X Ubuntu Linux Debian Linux and 13 more
CVE-2019-16935

python: XSS vulnerability in the documentation XML-RPC server in server_title field

The documentation XML-RPC server in Python through 2.7.16, 3.x through 3.6.9, and 3.7.x through 3.7.4 has XSS via the server_title field. This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with untrusted input, arbitrary JavaScript can be delivered to clients that visit the http URL for this server.

CVSS 3.1 · 6.1 Medium EPSS 4.7% KEV · Not listed
Vendors
Canonical Debian Python and 1 more
Products
Ubuntu Linux Debian Linux Python and 3 more
CVE-2018-14647

python: Missing salt initialization in _elementtree.c module

Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. The vulnerability exists in Python versions 3.7.0, 3.6.0 through 3.6.6, 3.5.0 through 3.5.6, 3.4.0 through 3.4.9, 2.7.0 through 2.7.15.

CVSS 3.1 · 7.5 High EPSS 10.9% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 12 more
CVE-2016-3092

tomcat: Usage of vulnerable FileUpload package can result in denial of service

The MultipartStream class in Apache Commons Fileupload before 1.3.2, as used in Apache Tomcat 7.x before 7.0.70, 8.x before 8.0.36, 8.5.x before 8.5.3, and 9.x before 9.0.0.M7 and other products, allows remote attackers to cause a denial of service (CPU consumption) via a long boundary string.

CVSS 3.1 · 7.5 High EPSS 37.2% KEV · Not listed
Vendors
Apache Canonical Debian and 2 more
Products
Commons Fileupload Tomcat Ubuntu Linux and 6 more
CVE-2026-104055

Monitoring-user password logged in cleartext by postgres_exporter in postgresql VM charm

The postgresql-operator charm runs a Prometheus postgres_exporter to collect database metrics using a dedicated "monitoring" PostgreSQL user. On database connection errors, the exporter writes the monitoring user's password in cleartext to its logs. Any actor able to read those logs can recover the password, which grants read-only pg_monitor access to PostgreSQL. This is fixed in the dev track (14/edge) in revisions 1189 (arm64) and 1190 (amd64), and in the stable track (14/stable) in revisions 1216 (arm64) and 1217 (amd64).

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical
Products
Postgresql-operator
CVE-2026-12392

RPC secret disclosure via vendor data endpoint in Canonical MAAS

An information exposure vulnerability in Canonical MAAS prior to versions 3.4.10, 3.5.14, 3.6.5, 3.7.3, and 3.8.0 allows an unauthenticated attacker to retrieve the RPC secret in plaintext via the vendor data metadata endpoint. If a target machine was deployed with the 'register as rack' option enabled, an attacker who obtains or infers the machine's system ID can query the preseed/metadata server to leak the secret.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical
Products
Maas
CVE-2026-102371

wsl-pro-service: Ubuntu Pro token exposed via process command-line arguments

In wsl-pro-service before 0.1.19ubuntu3, the service component which runs as root inside each WSL instance attaches the instance to Ubuntu Pro by executing the pro client with the Ubuntu Pro token passed as a command-line argument (pro attach <token>). On systems where /proc is mounted without process-hiding mitigations (such as hidepid), which is the default in WSL, an unprivileged local user or process in the same WSL instance can read the token from /proc/<pid>/cmdline while the attach process is running. The leaked token could then be used to attach other machines to the victim's Ubuntu Pro subscription and gain unauthorized access to Ubuntu Pro services.

CVSS 4.0 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical
Products
Ubuntu Pro For Wsl
CVE-2026-86334

CLI Path Traversal via Content-Disposition in LXD Image Export/Copy

Path traversal in the CLI client image export and copy functionality in Canonical LXD from 4.0.2 before 4.0.14, 5.0.10, 5.21.8, and 6.10 on all platforms allows a remote malicious or machine-in-the-middle image server to overwrite arbitrary local files and execute code on the client system via a crafted Content-Disposition header filename parameter during unified image export or copy operations into a local directory target.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical
Products
Lxd
CVE-2026-97335

Incorrect authorization in LXD storage volume API allows reading volumes from other projects

Incorrect authorization in the custom storage volume creation endpoint in Canonical LXD versions 5.0.0 and later (fixed in 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create custom volumes in a project to copy, and so read, any custom storage volume from any other project on the server, including its snapshots and configuration. The client does this with a crafted request that sets a source volume and source.project but omits source.type.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Canonical
Products
Lxd