USN-6540-1: BlueZ vulnerability

It was discovered that BlueZ did not properly restrict non-bonded devices from injecting HID events into the input subsystem. This could allow a physically proximate attacker to inject keystrokes and execute arbitrary commands whilst the device is discoverable...

USN-6539-1: python-cryptography vulnerabilities

It was discovered that the python-cryptography Cipher.updateinto function would incorrectly accept objects with immutable buffers. This would result in corrupted output, contrary to expectations. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. CVE-2023-23931 It was...

USN-6482-1: Quagga vulnerabilities

It was discovered that Quagga incorrectly handled certain BGP messages. A remote attacker could possibly use this issue to cause Quagga to crash, resulting in a denial of service...

USN-6479-1: Linux kernel (OEM) vulnerabilities

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service system crash. CVE-2023-42756 Alex Birnberg discovered that the netfilter subsystem in the Linux...

USN-6462-2: Linux kernel (IoT) vulnerabilities

Seth Jenkins discovered that the Linux kernel did not properly perform address randomization for a per-cpu memory management structure. A local attacker could use this to expose sensitive information kernel memory or in conjunction with another kernel vulnerability. CVE-2023-0597 Yu Hao and Weite...

USN-6465-2: Linux kernel (Raspberry Pi) vulnerabilities

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service system crash. CVE-2023-31083 Lin Ma discovered that the Netlink...

USN-6454-3: Linux kernel (ARM laptop) vulnerabilities

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service system crash. CVE-2023-42756 Alex Birnberg discovered that the netfilter subsystem in the Linux...

USN-6438-2: .Net regressions

USN-6438-1 fixed vulnerabilities in .Net. It was discovered that the fix for CVE-2023-36799 was incomplete. This update fixes the problem. Original advisory details: Kevin Jones discovered that .NET did not properly process certain X.509 certificates. An attacker could possibly use this issue to...

USN-6438-1: .NET vulnerabilities

Kevin Jones discovered that .NET did not properly process certain X.509 certificates. An attacker could possibly use this issue to cause a denial of service. CVE-2023-36799 It was discovered that the .NET Kestrel web server did not properly handle HTTP/2 requests. A remote attacker could possibly...

USN-6339-2: Linux kernel vulnerabilities

It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when mounted and operated on, could cause a denial of service system crash. CVE-2022-48425...

USN-6349-1: Linux kernel (Azure) vulnerabilities

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service bluetooth communication. CVE-2023-2002 Zi Fan Tan discovered that the binder IPC...

USN-6343-1: Linux kernel (OEM) vulnerabilities

It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service excessive CPU consumption. CVE-2023-1206 Ross Lagerwall discovered that the Xen netback backend...

USN-6281-1: Velocity Engine vulnerability

Alvaro Munoz discovered that Velocity Engine incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code...

USN-6228-1: Linux kernel vulnerabilities

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service system crash. CVE-2023-212...

USN-6177-1: Jettison vulnerabilities

It was discovered that Jettison incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service...

USN-6162-1: Linux kernel (Intel IoTG) vulnerabilities

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrar...

USN-6069-1: Linux kernel (Raspberry Pi) vulnerability

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the...

USN-6058-1: Linux kernel vulnerability

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the...

USN-6007-1: Linux kernel (GCP) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5970-1: Linux kernel vulnerabilities

It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. CVE-2022-2196 It was discovered...

USN-5948-1: Werkzeug vulnerabilities

It was discovered that Werkzeug did not properly handle the parsing of nameless cookies. A remote attacker could possibly use this issue to shadow other cookies. CVE-2023-23934 It was discovered that Werkzeug could be made to process unlimited number of multipart form data parts. A remote attacke...

USN-5924-1: Linux kernel (Azure) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5881-1: Chromium vulnerabilities

It was discovered that Chromium did not properly manage memory. A remote attacker could possibly use these issues to cause a denial of service or execute arbitrary code via a crafted HTML page. CVE-2023-0471, CVE-2023-0472, CVE-2023-0473, CVE-2023-0696, CVE-2023-0698, CVE-2023-0699, CVE-2023-0702...

USN-5795-2: Net-SNMP vulnerabilities

USN-5795-1 and 5543-1 fixed several vulnerabilities in Net-SNMP. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It was discovered that Net-SNMP incorrectly handled certain requests. A remote attacker could possibly use these...

USN-5772-1: QEMU vulnerabilities

It was discovered that QEMU incorrectly handled bulk transfers from SPICE clients. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. CVE-2021-3682 It...

USN-5759-1: LibBPF vulnerabilities

It was discovered that LibBPF incorrectly handled certain memory operations under certain circumstances. An attacker could possibly use this issue to cause LibBPF to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.10. CVE-2021-45940,...

USN-5755-1: Linux kernel vulnerabilities

It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-43945 Jann Horn discovered that the...

USN-5702-1: curl vulnerabilities

Robby Simpson discovered that curl incorrectly handled certain POST operations after PUT operations. This issue could cause applications using curl to send the wrong data, perform incorrect memory operations, or crash. CVE-2022-32221 Hiroki Kurosawa discovered that curl incorrectly handled parsin...

USN-5693-1: Linux kernel (OEM) vulnerabilities

David Bouman and Billy Jheng Bing Jhong discovered that a race condition existed in the iouring subsystem in the Linux kernel, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-2602...

USN-5612-1: Intel Microcode vulnerability

Pietro Borrello, Andreas Kogler, Martin Schwarzl, Daniel Gruss, Michael Schwarz and Moritz Lipp discovered that some Intel processors did not properly clear data between subsequent xAPIC MMIO reads. This could allow a local attacker to compromise SGX enclaves...

USN-5576-1: Twisted vulnerability

It was discovered that Twisted incorrectly parsed some types of HTTP requests in its web server implementation. In certain proxy or multi-server configurations, a remote attacker could craft malicious HTTP requests in order to obtain sensitive information...

USN-5447-1: logrotate vulnerability

It was discovered that logrotate incorrectly handled the state file. A local attacker could possibly use this issue to keep a lock on the state file and cause logrotate to stop working, leading to a denial of service...

USN-5404-2: Rsyslog vulnerability

USN-5404-1 addressed a vulnerability in Rsyslog. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Pieter Agten discovered that Rsyslog incorrectly handled certain requests. An attacker could possibly use this issue to cause a crash...

USN-5432-2: libpng vulnerabilities

USN-5432-1 fixed vulnerabilities in libpng. This update provides the corresponding updates for libpng1.6. Original advisory details: It was discovered that libpng incorrectly handled memory when parsing certain PNG files. If a user or automated system were tricked into opening a specially crafted...

USN-5342-3: Python vulnerability

USN-5342-1 fixed several vulnerabilities in Python. This update provides the corresponding fix for CVE-2021-3426 for Ubuntu 18.04 ESM. Original advisory details: David Schwörer discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive...

USN-4961-2: pip vulnerability

USN-4961-1 fixed a vulnerability in pip. This update provides the corresponding updates for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. Original advisory details: It was discovered that pip incorrectly handled unicode separators in git references. A remote attacker could possibly use...

USN-4823-1: Mosquitto vulnerability

It was discovered that Mosquitto incorrectly handled certain inputs. A remote attacker could possibly use this issue to cause a denial of service...

USN-4652-1: SniffIt vulnerability

It was discovered that SniffIt incorrectly handled certain configuration files. An attacker could possibly use this issue to execute arbitrary code...

USN-4649-1: xdg-utils vulnerability

Jens Mueller discovered that xdg-utils incorrectly handled certain URI. An attacker could possibly use this issue to expose sensitive information...

USN-4605-1: Blueman vulnerability

Vaisha Bernard discovered that blueman did not properly sanitize input on the d-bus interface to blueman-mechanism. A local attacker could possibly use this issue to escalate privileges and run arbitrary code or cause a denial of service. CVE-2020-15238...

USN-4558-1: libapreq2 vulnerabilities

It was discovered that libapreq2 did not properly sanitize the Content-Type field in certain, crafted HTTP requests. An attacker could use this vulnerability to cause libapreq2 to crash...

USN-4556-1: netqmail vulnerabilities

It was discovered that netqmail did not properly handle certain input. Both remote and local attackers could use this vulnerability to cause netqmail to crash or execute arbitrary code. CVE-2005-1513, CVE-2005-1514, CVE-2005-1515 It was discovered that netqmail did not properly handle certain inp...

USN-4541-1: Gnuplot vulnerabilities

Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars discovered that Gnuplot did not properly validate string sizes in the dfgenerateasciiarrayentry function. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service attack or arbitra...

USN-4529-1: FreeImage vulnerabilities

It was discovered that FreeImage incorrectly handled certain memory operations. If a user were tricked into opening a crafted TIFF file, a remote attacker could use this issue to cause a heap buffer overflow, resulting in a denial of service attack. CVE-2019-12211 It was discovered that FreeImage...

USN-4519-1: PulseAudio vulnerability

Ratchanan Srirattanamet discovered that an Ubuntu-specific patch caused PulseAudio to incorrectly handle memory under certain error conditions in the Bluez 5 module. An attacker could use this issue to cause PulseAudio to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-4514-1: libproxy vulnerability

It was discovered that libproxy incorrectly handled certain PAC files. An attacker could possibly use this issue to cause a denial of service...

USN-4481-1: FreeRDP vulnerabilities

It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-4478-1: Python-RSA vulnerability

It was discovered that Python-RSA incorrectly handled certain ciphertexts. An attacker could possibly use this issue to obtain sensitive information...

USN-4399-1: Bind vulnerabilities

It was discovered that Bind incorrectly handled large responses during zone transfers. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. CVE-2020-8618 It was discovered that Bind incorrectly handled certain asterisk characters in zone files....

USN-4377-1: ca-certificates update

The ca-certificates package contained an expired CA certificate that caused connectivity issues. This update removes the "AddTrust External Root" CA. In addition, on Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, this update refreshes the included certificates to those contained in the 20190110 package...