LSN-0078-1: Kernel Live Patch Security Notice

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code.CVE-2021-3609...

USN-4936-1: Thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. CVE-2021-23968,...

USN-4907-1: Linux kernel vulnerabilities

Wen Xu discovered that the xfs file system implementation in the Linux kernel did not properly validate the number of extents in an inode. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service system crash. CVE-2018-13095 It was discover...

USN-4715-1: Django vulnerability

Wang Baohua discovered that Django incorrectly extracted archive files. A remote attacker could possibly use this issue to extract files outside of their expected location...

USN-4210-1: Linux kernel vulnerabilities

It was discovered that a buffer overflow existed in the 802.11 Wi-Fi configuration interface for the Linux kernel when handling beacon settings. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2019-16746 Nicolas Waisman discovered...

USN-4185-3: Linux kernel vulnerability and regression

USN-4185-1 fixed vulnerabilities in the Linux kernel. It was discovered that the kernel fix for CVE-2019-0155 i915 missing Blitter Command Streamer check was incomplete on 64-bit Intel x86 systems. Also, the update introduced a regression that broke KVM guests where extended page tables EPT are...

USN-4077-1: tmpreaper vulnerability

It was discovered that tmpreaper incorrectly handled certain mount operations. A local attacker could possibly use this issue to create arbitrary files, leading to privilege escalation...

USN-4071-1: Patch vulnerabilities

It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. CVE-2019-13636 It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code...

USN-3932-1: Linux kernel vulnerabilities

It was discovered that a race condition existed in the f2fs file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service. CVE-2017-18249 Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadat...

USN-3871-1: Linux kernel vulnerabilities

Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service system crash or possibly execute arbitrary code...

USN-3823-1: Linux kernel vulnerabilities

It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault L1TF. A local attacker in a guest virtual machine could use this to expose sensitive...

USN-3259-1: Bind vulnerabilities

It was discovered that the resolver in Bind made incorrect assumptions about ordering when processing responses containing a CNAME or DNAME. An attacker could use this cause a denial of service. CVE-2017-3137 Oleg Gorokhov discovered that in some situations, Bind did not properly handle DNS64...

USN-5985-1: Linux kernel vulnerabilities

It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service memory exhaustion. CVE-2021-3669 It was discovered that the KVM VMX implementation in the Linux kernel did no...

USN-5879-1: Linux kernel (HWE) vulnerabilities

Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service system crash or execute arbitrary code. CVE-2022-4378 Tamás Koczka discovered that the Bluetooth L2CAP handshake...

USN-5332-1: Bind vulnerabilities

Xiang Li, Baojun Liu, Chaoyi Lu, and Changgen Zou discovered that Bind incorrectly handled certain bogus NS records when using forwarders. A remote attacker could possibly use this issue to manipulate cache results. CVE-2021-25220 It was discovered that Bind incorrectly handled certain crafted TC...

USN-5137-1: Linux kernel vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

USN-5124-1: GNU binutils vulnerabilities

It was discovered that GNU binutils incorrectly handled certain hash lookups. An attacker could use this issue to cause GNU binutils to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2020-16592 It was discovered that GNU binutils incorrectly handled certain corru...

USN-5120-1: Linux kernel (Azure) vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

USN-5038-1: PostgreSQL vulnerabilities

It was discovered that the PostgresQL planner could create incorrect plans in certain circumstances. A remote attacker could use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly obtain sensitive information from memory. This issue only affected Ubuntu 20.04 L...

LSN-0076-1: Kernel Live Patch Security Notice

It was discovered that the overlayfs implementation in the Linux kernel did not properly validate the application of file system capabilities with respect to user namespaces. A local attacker could use this to gain elevated privileges.CVE-2021-3493 Piotr Krysiuk discovered that the BPF JIT compil...

USN-4906-1: Nettle vulnerability

It was discovered that Nettle incorrectly handled signature verification. A remote attacker could use this issue to cause Nettle to crash, resulting in a denial of service, or possibly force invalid signatures...

USN-4697-1: Pillow vulnerabilities

It was discovered that Pillow incorrectly handled certain PCX image files. If a user or automated system were tricked into opening a specially-crafted PCX file, a remote attacker could possibly cause Pillow to crash, resulting in a denial of service. CVE-2020-35653 It was discovered that Pillow...

USN-4695-1: icoutils vulnerabilities

Choongwoo Han discovered that icoutils incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. CVE-2017-5208 It was discovered that icoutils incorrectly handled certain files. An attacker could possibly use this issue to...

USN-4587-1: iTALC vulnerabilities

Nicolas Ruff discovered that iTALC had buffer overflows, divide-by-zero errors and didn't check malloc return values. A remote attacker could use these issues to cause a denial of service or possibly execute arbitrary code. CVE-2014-6051, CVE-2014-6052, CVE-2014-6053, CVE-2014-6054, CVE-2014-6055...

USN-4366-1: Exim vulnerability

It was discovered that Exim incorrectly handled certain inputs. An remote attacker could possibly use this issue to access sensitive information or authentication bypass...

USN-4255-2: Linux kernel (HWE) vulnerabilities

USN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that the Linux kernel did not properly clear data structures on...

USN-4235-1: nginx vulnerability

Bert JW Regeer and Francisco Oca Gonzalez discovered that nginx incorrectly handled certain errorpage configurations. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks and access resources contrary to expectations...

USN-4095-1: Linux kernel vulnerabilities

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. CVE-2018-5383 It was discovered that a...

USN-4031-1: Linux kernel vulnerability

It was discovered that the Linux kernel did not properly separate certain memory mappings when creating new userspace processes on 64-bit Power ppc64el systems. A local attacker could use this to access memory contents or cause memory corruption of other processes on the system...

USN-4019-1: SQLite vulnerabilities

It was discovered that SQLite incorrectly handled certain SQL files. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service. This issue only affected Ubuntu 16.04 LTS. CVE-2017-2518, CVE-2017-2520 It was discovered that SQLite incorrectly handled certain...

USN-3762-1: Linux kernel vulnerabilities

It was discovered that the VirtIO subsystem in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to possibly expose sensitive information kernel memory. CVE-2018-1118 Seunghun Han discovered an information leak in the ACPI handling code in the...

USN-3648-1: curl vulnerabilities

Dario Weisser discovered that curl incorrectly handled long FTP server command replies. If a user or automated system were tricked into connecting to a malicious FTP server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute...

USN-510-1: Linux kernel vulnerabilities

A flaw was discovered in the PPP over Ethernet implementation. Local attackers could manipulate ioctls and cause kernel memory consumption leading to a denial of service. CVE-2007-2525 An integer underflow was discovered in the cpuset filesystem. If mounted, local attackers could obtain kernel...

USN-5538-1: libtirpc vulnerability

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

USN-5179-2: BusyBox vulnerability

USN-5179-1 fixed vulnerabilities in BusyBox. This update provides the corresponding updates for Ubuntu 16.04 ESM. Original advisory details: It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially...

USN-5376-1: Git vulnerability

俞晨东 discovered that Git incorrectly handled certain repository paths in platforms with multiple users support. An attacker could possibly use this issue to run arbitrary commands...

USN-5331-1: tcpdump vulnerabilities

It was discovered that tcpdump incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary code. CVE-2018-16301 It was discovered that tcpdump incorrectly handled certain captured data. An attacker could possibly use th...

USN-5123-1: MySQL vulnerabilities

Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 8.0.27 in Ubuntu 20.04 LTS, Ubuntu 21.04, and Ubuntu 21.10. Ubuntu 18.04 LTS has been updated to MySQL 5.7.36. In addition to security fixes, the...

USN-5109-1: nginx vulnerability

It was discovered that nginx incorrectly handled files with certain modification dates. A remote attacker could possibly use this issue to cause a denial of service or other unspecified impact...

USN-5093-1: Vim vulnerabilities

Brian Carpenter discovered that vim incorrectly handled memory when opening certain files. If a user was tricked into opening a specially crafted file, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. This issu...

USN-5071-3: Linux kernel (Raspberry Pi) vulnerabilities

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to expose sensitive information or execute...

USN-5035-1: GPSd vulnerability

It was discovered that GPSd incorrectly handled certain leap second events which would result in the time jumping back 1024 weeks on 2021-10-31...

USN-4755-1: LibTIFF vulnerabilities

It was discovered that LibTIFF incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges...

USN-4568-1: Brotli vulnerability

It was discovered that Brotli incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash...

USN-4224-1: Django vulnerability

Simon Charette discovered that the password reset functionality in Django used a Unicode case insensitive query to retrieve accounts associated with an email address. An attacker could possibly use this to obtain password reset tokens and hijack accounts...

USN-3957-2: MariaDB vulnerabilities

USN-3957-1 fixed multiple vulnerabilities in MySQL. This update provides the corresponding fixes for CVE-2019-2614 and CVE-2019-2627 in MariaDB 5.5. Ubuntu 14.04 LTS has been updated to MariaDB 5.5.64. In addition to security fixes, the updated packages contain bug fixes, new features, and possib...

USN-3922-2: PHP vulnerabilities

USN-3922-1 fixed vulnerabilities in PHP. This update provides the corresponding update for Ubuntu 14.04 LTS. It was discovered that PHP incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. CVE-2019-9022 It was discovered that PHP incorrectl...

USN-3816-2: systemd vulnerability

USN-3816-1 fixed several vulnerabilities in systemd. However, the fix for CVE-2018-6954 was not sufficient. This update provides the remaining fixes. We apologize for the inconvenience. Original advisory details: Jann Horn discovered that unitdeserialize incorrectly handled status messages above ...

USN-3643-2: Wget vulnerability

USN-3643-1 fixed a vulnerability in Wget. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that Wget incorrectly handled certain inputs. An attacker could possibly use this to inject arbitrary cookie values...

USN-3627-1: Apache HTTP Server vulnerabilities

Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server modauthnzldap module incorrectly handled missing charset encoding headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. CVE-2017-15710 Elar Lang discovered that...