Ubuntu Security Notice 6747-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service.
fe5132fb8a5bc8bcd0558902c71cf2276c28f6168b4d2cd89f4e001ddfd7106dUbuntu Security Notice 6742-2 - Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to subsequently impersonate one of the paired devices. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.
186243d4c27faa63ab8d52c327cc0396d841121b76a1d45b444edac2801ebb9aUbuntu Security Notice 6746-1 - It was discovered that Google Guest Agent and Google OS Config Agent incorrectly handled certain JSON files. An attacker could possibly use this issue to cause a denial of service.
4711e95dafcdc5ecd9aa5665bc96071e9d4193763164d7e9726ef45f45021482Ubuntu Security Notice 6728-3 - USN-6728-1 fixed vulnerabilities in Squid. The fix for CVE-2023-5824 caused Squid to crash in certain environments on Ubuntu 20.04 LTS and was disabled in USN-6728-2. The problematic fix for CVE-2023-5824 has now been corrected and reinstated in this update.
0bf30fb6ffcb2ab3a9eb80bf643a6a374df5e9b1e030e608690f2c194f51ccddUbuntu Security Notice 6743-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.
ad9c04adbcdee9be436a8df29d9d071201aa865ba8141b9946f2a4e52cb9ffe9Ubuntu Security Notice 6744-2 - USN-6744-1 fixed a vulnerability in Pillow. This update provides the corresponding updates for Pillow in Ubuntu 20.04 LTS. Hugo van Kemenade discovered that Pillow was not properly performing bounds checks when processing an ICC file, which could lead to a buffer overflow. If a user or automated system were tricked into processing a specially crafted ICC file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
7f9a3f70c1f7e100375a7fbb89547638e45380d3ba57eca5212263547b378f8cUbuntu Security Notice 6744-1 - Hugo van Kemenade discovered that Pillow was not properly performing bounds checks when processing an ICC file, which could lead to a buffer overflow. If a user or automated system were tricked into processing a specially crafted ICC file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
a1631938e290abb7678d024b33eb2b0bf5cf2f26fdff61069536a736c29b981aUbuntu Security Notice 6745-1 - It was discovered that in Percona XtraBackup, a local crafted filename could trigger arbitrary code execution.
40803bb13bb6b4c27bfc5773a166b8effac088e66f24df2f5ef97c3868607eeaUbuntu Security Notice 6738-1 - Fabian Bäumer, Marcus Brinkmann, and Joerg Schwenk discovered that LXD incorrectly handled the handshake phase and the use of sequence numbers in SSH Binary Packet Protocol. 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 bypass integrity checks.
d77b141e270c41154b29de186352132905dedeb534b3e7d82e7b08b98259c5f4Ubuntu Security Notice 6743-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.
5e5f229563e3c429730da05f62649d804fe5fcc3df71db82f33e6fe0ba5299c1Ubuntu Security Notice 6742-1 - Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to subsequently impersonate one of the paired devices. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.
234102586def229a208c315fa397cd1db7c7bc4c31eab695d1718ef42f88ce93Ubuntu Security Notice 6741-1 - Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to subsequently impersonate one of the paired devices. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.
c6b3855c5a30ae98458ae3e5b1858440f9d4c3d136432f67ecdd3beeeb05fc11Ubuntu Security Notice 6740-1 - Wei Chen discovered that a race condition existed in the TIPC protocol implementation in the Linux kernel, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service. It was discovered that the virtio network implementation in the Linux kernel did not properly handle file references in the host, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information.
444f68d723cc469e212afdb8cada5cf6504c7f71ead1646805559424b443f87eUbuntu Security Notice 6739-1 - It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm 64-bit systems. A local attacker could use this to cause a denial of service. Wei Chen discovered that a race condition existed in the TIPC protocol implementation in the Linux kernel, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service.
5f4dadac1f0ffbad1948bc44ea21d9526e86681e856c3a3cb7fb406e90965bf4Ubuntu Security Notice 6737-1 - Charles Fol discovered that the GNU C Library iconv feature incorrectly handled certain input sequences. An attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code.
a2193ea8debdc56e5db177fb9a7501493c0c605992b026d6d4b0041034023456Ubuntu Security Notice 6729-2 - USN-6729-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Orange Tsai discovered that the Apache HTTP Server incorrectly handled validating certain input. A remote attacker could possibly use this issue to perform HTTP request splitting attacks.
48e8f6ab38e454ffe37a65ae74aa96cb5b3942a28276a0cc0f3a974d4716ae83Ubuntu Security Notice 6726-3 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache memory usage. A remote attacker could use this to cause a denial of service.
fbdef91004d190c96cf4e043eaae82ae1153ee17c38e14e93c908daa2a909e66Ubuntu Security Notice 6726-2 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache memory usage. A remote attacker could use this to cause a denial of service.
729c2c491401a2ba3cbcc24fc7e792dce6e1d41caac420160758655bfe67ca27Ubuntu Security Notice 6725-2 - Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service or possibly expose sensitive information. Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code.
6d7cd6326721629b499ff1a4ed3916c1134b9cf7a03933ebb2aad8ffbd18a71dUbuntu Security Notice 6724-2 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the Habana's AI Processors driver in the Linux kernel did not properly initialize certain data structures before passing them to user space. A local attacker could use this to expose sensitive information.
11f429fc308aea23b94e34cc88c73194b07fa2d7d771891e940b1ec417543744Ubuntu Security Notice 6736-1 - It was discovered that zlib, vendored in klibc, incorrectly handled pointer arithmetic. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. Danilo Ramos discovered that zlib, vendored in klibc, incorrectly handled memory when performing certain deflating operations. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code.
f890a9231f096daf4ea198b52f282501ce5325cda3d58612406a839f4db116f8Ubuntu Security Notice 6735-1 - It was discovered that Node.js incorrectly handled the use of invalid public keys while creating an x509 certificate. 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. This issue only affected Ubuntu 23.10. It was discovered that Node.js incorrectly handled the use of CRLF sequences to delimit HTTP requests. 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 obtain unauthorised access. This issue only affected Ubuntu 23.10.
68173f83f0f09f1ae43ac3a78cd02b33b6ccf09520b2e1d1d103a308c74bddd3Ubuntu Security Notice 6734-1 - Alexander Kuznetsov discovered that libvirt incorrectly handled certain API calls. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. It was discovered that libvirt incorrectly handled certain RPC library API calls. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. It was discovered that libvirt incorrectly handled detaching certain host interfaces. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service.
a88afa3df653eb731bbf80eb700a1b7f14ed5a300bee125d81dbf9af2465df19Ubuntu Security Notice 6733-1 - It was discovered that GnuTLS had a timing side-channel when performing certain ECDSA operations. A remote attacker could possibly use this issue to recover sensitive information. It was discovered that GnuTLS incorrectly handled verifying certain PEM bundles. A remote attacker could possibly use this issue to cause GnuTLS to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.10.
dfebcedb7a860d4a621a8d974617128c42cd5bb110089a91567169351a2f584dUbuntu Security Notice 6732-1 - Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.
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