USN-1389-1: Linux kernel vulnerabilities

Paolo Bonzini discovered a flaw in Linux's handling of the SGIO ioctl command. A local user, or user in a VM could exploit this flaw to bypass restrictions and gain read/write access to all data on the affected block device. CVE-2011-4127 A flaw was found in KVM's Programmable Interval Timer PIT...

USN-1337-1: Linux kernel (Natty backport) vulnerabilities

Peter Huewe discovered an information leak in the handling of reading security-related TPM data. A local, unprivileged user could read the results of a previous TPM command. CVE-2011-1162 Clement Lecigne discovered a bug in the HFS filesystem. A local attacker could exploit this to cause a kernel...

USN-1278-1: Linux (Maverick backport) vulnerabilities

It was discovered that CIFS incorrectly handled authentication. When a user had a CIFS share mounted that required authentication, a local user could mount the same share without knowing the correct password. CVE-2011-1585 Andrea Righi discovered a race condition in the KSM memory merging support...

USN-1275-1: Linux kernel vulnerability

Peter Huewe discovered an information leak in the handling of reading security-related TPM data. A local, unprivileged user could read the results of a previous TPM command. CVE-2011-1162 Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit...

USN-1192-1: Firefox vulnerabilities

Aral Yaman discovered a vulnerability in the WebGL engine. An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. CVE-2011-2989 Vivekanand Bolajwar discovered a vulnerability in the JavaScript engine. An attacker could...

USN-1049-1: Firefox and Xulrunner vulnerabilities

Jesse Ruderman, Igor Bukanov, Olli Pettay, Gary Kwong, Jeff Walden, Henry Sivonen, Martijn Wargers, David Baron and Marcia Knous discovered several memory issues in the browser engine. An attacker could exploit these to crash the browser or possibly run arbitrary code as the user invoking the...

USN-1017-1: MySQL vulnerabilities

It was discovered that MySQL incorrectly handled certain requests with the UPGRADE DATA DIRECTORY NAME command. An authenticated user could exploit this to make MySQL crash, causing a denial of service. This issue only affected Ubuntu 9.10 and 10.04 LTS. CVE-2010-2008 It was discovered that MySQL...

USN-1016-1: libxml2 vulnerability

Bui Quang Minh discovered that libxml2 did not properly process XPath namespaces and attributes. If an application using libxml2 opened a specially crafted XML file, an attacker could cause a denial of service or possibly execute code as the user invoking the program...

USN-1011-3: Xulrunner vulnerability

USN-1011-1 fixed a vulnerability in Firefox. This update provides the corresponding update for Xulrunner. Original advisory details: Morten Krakvik discovered a heap-based buffer overflow in Firefox. If a user were tricked into navigating to a malicious site, an attacker could cause a denial of...

USN-959-2: PAM vulnerability

USN-959-1 fixed vulnerabilities in PAM. This update provides the corresponding updates for Ubuntu 10.10. Original advisory details: Denis Excoffier discovered that the PAM MOTD module in Ubuntu did not correctly handle path permissions when creating user file stamps. A local attacker could exploi...

USN-1003-1: OpenSSL vulnerabilities

It was discovered that OpenSSL incorrectly handled return codes from the bnwexpand function calls. A remote attacker could trigger this flaw in services that used SSL to cause a denial of service or possibly execute arbitrary code with application privileges. This issue only affected Ubuntu 6.06...

USN-977-1: MoinMoin vulnerabilities

It was discovered that MoinMoin did not properly sanitize its input, resulting in cross-site scripting XSS vulnerabilities. With cross-site scripting vulnerabilities, if a user were tricked into viewing server output during a crafted server request, a remote attacker could exploit this to modify...

USN-877-1: Firefox 3.0 and Xulrunner 1.9 regression

USN-873-1 fixed vulnerabilities in Firefox and Xulrunner. The upstream changes introduced a regression when using NTLM authentication. This update fixes the problem and adds additional stability fixes. We apologize for the inconvenience. Original advisory details: Jesse Ruderman, Josh Soref,...

USN-859-1: OpenJDK vulnerabilities

Dan Kaminsky discovered that SSL certificates signed with MD2 could be spoofed given enough time. As a result, an attacker could potentially create a malicious trusted certificate to impersonate another site. This update handles this issue by completely disabling MD2 for certificate validation in...

USN-838-1: Dovecot vulnerabilities

It was discovered that the ACL plugin in Dovecot would incorrectly handle negative access rights. An attacker could exploit this flaw to access the Dovecot server, bypassing the intended access restrictions. This only affected Ubuntu 8.04 LTS. CVE-2008-4577 It was discovered that the ManageSieve...

USN-764-1: Firefox and Xulrunner vulnerabilities

Several flaws were discovered in the browser engine. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. CVE-2009-1302, CVE-2009-1303, CVE-2009-1304,...

USN-717-3: Firefox vulnerabilities

Kojima Hajime discovered that Firefox did not properly handle an escaped null character. An attacker may be able to exploit this flaw to bypass script sanitization. CVE-2008-5510 Wladimir Palant discovered that Firefox did not restrict access to cookies in HTTP response headers. If a user were...

USN-617-1: Samba vulnerabilities

Samba developers discovered that nmbd could be made to overrun a buffer during the processing of GETDC logon server requests. When samba is configured as a Primary or Backup Domain Controller, a remote attacker could send malicious logon requests and possibly cause a denial of service...

USN-469-1: Thunderbird vulnerabilities

Gaëtan Leurent showed a weakness in APOP authentication. An attacker posing as a trusted server could recover portions of the user's password via multiple authentication attempts. CVE-2007-1558 Various flaws were discovered in the layout and JavaScript engines. By tricking a user into opening a...

USN-395-1: Linux kernel vulnerabilities

Mark Dowd discovered that the netfilter iptables module did not correcly handle fragmented packets. By sending specially crafted packets, a remote attacker could exploit this to bypass firewall rules. This has only be fixed for Ubuntu 6.10; the corresponding fix for Ubuntu 5.10 and 6.06 will foll...

USN-184-1: umount vulnerability

David Watson discovered that "umount -r" removed some restrictive mount options like the "nosuid" flag. If /etc/fstab contains user-mountable removable devices which specify the "nosuid" flag which is common practice for such devices, a local attacker could exploit this to execute arbitrary...

USN-54-1: TIFF library tool vulnerability

Dmitry V. Levin discovered a buffer overflow in the "tiffdump" utility. If an attacker tricked a user into processing a malicious TIFF image with tiffdump, they could cause a buffer overflow which at least causes the program to crash. However, it is not entirely clear whether this can be exploite...

USN-32-1: mysql vulnerabilities

Several vulnerabilities have been discovered in the MySQL database server. Lukasz Wojtow discovered a potential buffer overflow in the function mysqlrealconnect. A malicious name server could send specially crafted DNS packages which might result in execution of arbitrary code with the database...

USN-8344-3: pip vulnerability

USN-8344-1 introduced a regression in pip. This update provides a complete fix for this issue.. We apologize for the inconvenience. Original advisory details: It was discovered that pip's bundled urllib3 library improperly handled streaming decompression of highly compressed data. A remote attack...

USN-6957-1: Linux kernel (Oracle) vulnerabilities

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to...

USN-6921-2: Linux kernel vulnerabilities

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to...

USN-6820-2: Linux kernel (NVIDIA) vulnerabilities

It was discovered that the ATA over Ethernet AoE driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. CVE-2023-6270 It was discovered that the Atheros 802.11ac...

USN-6728-3: Squid vulnerability

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. We apologize for the inconvenience...

USN-6728-1: Squid vulnerabilities

Joshua Rogers discovered that Squid incorrectly handled collapsed forwarding. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. CVE-2023-49288 Joshua Rogers discovered that Squ...

USN-6726-1: Linux kernel vulnerabilities

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 host domain crash...

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-6463-1: Open VM Tools vulnerabilities

It was discovered that Open VM Tools incorrectly handled SAML tokens. A remote attacker Guest Operations privileges could possibly use this issue to escalate privileges. CVE-2023-34058 Matthias Gerstner discovered that Open VM Tools incorrectly handled file descriptors when dropping privileges. A...

USN-6462-1: Linux kernel 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-6387-2: Linux kernel vulnerabilities

Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. CVE-2023-20588 It was discovered...

USN-6391-1: CUPS vulnerability

It was discovered that CUPS incorrectly parsed certain Postscript objects. If a user or automated system were tricked into printing a specially crafted document, a remote attacker could use this issue to cause CUPS to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-6319-1: AMD Microcode vulnerability

Daniël Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel...

USN-6267-3: Firefox regressions

USN-6267-1 fixed vulnerabilities and USN-6267-2 fixed minor regressions in Firefox. The update introduced several minor regressions. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user were...

USN-6104-1: PostgreSQL vulnerabilities

Alexander Lakhin discovered that PostgreSQL incorrectly handled certain CREATE privileges. An authenticated user could possibly use this issue to execute arbitrary code as the bootstrap supervisor. CVE-2023-2454 Wolfgang Walther discovered that PostgreSQL incorrectly handled certain row security...

USN-6061-1: WebKitGTK vulnerabilities

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...

USN-6053-1: PHP vulnerability

It was discovered that PHP incorrectly handled certain invalid Blowfish password hashes. An invalid password hash could possibly allow applications to accept any password as valid, contrary to expectations...

USN-6021-1: Chromium vulnerabilities

It was discovered that Chromium did not properly manage memory in several components. A remote attacker could possibly use this issue to corrupt memory via a crafted HTML page, resulting in a denial of service, or possibly execute arbitrary code. CVE-2023-1528, CVE-2023-1530, CVE-2023-1531,...

USN-5962-1: Linux kernel (Intel IoTG) 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-5952-1: OpenJPEG vulnerabilities

Sebastian Poeplau discovered that OpenJPEG 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 or execute arbitrary code. This issue only affecte...

USN-5932-1: Sofia-SIP vulnerabilities

It was discovered that Sofia-SIP incorrectly handled specially crafted SDP packets. A remote attacker could use this issue to cause applications using Sofia-SIP to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 LT...

USN-5778-2: X.Org X Server vulnerabilities

USN-5778-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that X.Org X Server extensions contained multiple security issues. An attacker could possibly use these...

USN-5866-1: Nova vulnerabilities

It was discovered that Nova did not properly manage data logged into the log file. An attacker with read access to the service's logs could exploit this issue and may obtain sensitive information. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. CVE-2015-9543 It was discovered that...

USN-5863-1: Linux kernel (Azure) 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 Tamás Koczka discovered that th...

USN-4781-2: Slurm vulnerabilities

USN-4781-1 fixed several vulnerabilities in Slurm. This update provides the corresponding updates for Ubuntu 14.04 ESM CVE-2016-10030 and Ubuntu 16.04 ESM CVE-2018-10995. Original advisory details: It was discovered that Slurm incorrectly handled certain messages between the daemon and the user. ...

USN-5754-1: 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 It was discovered that a memory...

USN-5714-1: LibTIFF vulnerabilities

It was discovered that LibTIFF incorrectly handled certain memory operations when using tiffcrop. An attacker could trick a user into processing a specially crafted tiff image file and potentially use this issue to cause a denial of service. This issue only affected Ubuntu 22.10. CVE-2022-2519,...