USN-1846-1: Linux kernel vulnerability

Kees Cook discovered a flaw in the Linux kernel's iSCSI subsystem. A remote unauthenticated attacker could exploit this flaw to cause a denial of service system crash or potentially gain administrative privileges...

USN-1794-1: Linux kernel (OMAP4) vulnerabilities

Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR Address Space Layout Randomization. A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be...

USN-1732-2: OpenSSL regression

USN-1732-1 fixed vulnerabilities in OpenSSL. The fix for CVE-2013-0169 and CVE-2012-2686 introduced a regression causing decryption failures on hardware supporting AES-NI. This update temporarily reverts the security fix pending further investigation. We apologize for the inconvenience. Original...

USN-1742-1: Linux kernel (OMAP4) vulnerability

Suleiman Souhlal, Salman Qazi, Aaron Durbin and Michael Davidson discovered a race condition in the Linux kernel's ptrace syscall. An unprivileged local attacker could exploit this flaw to run programs as an administrator...

USN-1724-1: OpenJDK vulnerabilities

Several vulnerabilities were discovered in the OpenJDK JRE related to information disclosure and data integrity. An attacker could exploit these to cause a denial of service. CVE-2012-1541, CVE-2012-3342, CVE-2013-0351, CVE-2013-0419, CVE-2013-0423, CVE-2013-0446, CVE-2012-3213, CVE-2013-0425,...

USN-1647-1: Linux kernel (OMAP4) vulnerabilities

Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. CVE-2012-0957 Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cau...

USN-1638-2: ubufox update

USN-1638-1 fixed vulnerabilities in Firefox. This update provides an updated ubufox package for use with the latest Firefox. Original advisory details: Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian Seward, Bill McCloskey, and Andr...

USN-1619-1: OpenJDK vulnerabilities

Several information disclosure vulnerabilities were discovered in the OpenJDK JRE. CVE-2012-3216, CVE-2012-5069, CVE-2012-5072, CVE-2012-5075, CVE-2012-5077, CVE-2012-5085 Vulnerabilities were discovered in the OpenJDK JRE related to information disclosure and data integrity. CVE-2012-4416,...

USN-1568-1: Linux kernel vulnerabilities

Ben Hutchings reported a flaw in the Linux kernel with some network drivers that support TSO TCP segment offload. A local or peer user could exploit this flaw to to cause a denial of service. CVE-2012-3412 Jay Fenlason and Doug Ledford discovered a bug in the Linux kernel implementation of RDS...

USN-1535-1: Linux kernel vulnerabilities

An error was discovered in the Linux kernel's network TUN/TAP device implementation. A local user with access to the TUN/TAP interface which is not available to unprivileged users until granted by a root user could exploit this flaw to crash the system or potential gain administrative privileges...

USN-1510-1: Thunderbird vulnerabilities

Benoit Jacob, Jesse Ruderman, Christian Holler, Bill McCloskey, Brian Smith, Gary Kwong, Christoph Diehl, Chris Jones, Brad Lassey, and Kyle Huey discovered memory safety issues affecting Thunderbird. If the user were tricked into opening a specially crafted page, an attacker could possibly explo...

USN-1452-1: Linux kernel vulnerabilities

A flaw was found in the Linux kernel's KVM Kernel Virtual Machine virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. CVE-2012-1601 Steve Grubb reported a flaw with Linux fscaps file system base capabilities when used to increa...

USN-1422-1: Linux kernel vulnerabilities

Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. CVE-2011-4347 Stephan Bärwolf discovered a flaw in the KVM kernel-based virtual machin...

USN-1400-1: Firefox vulnerabilities

Soroush Dalili discovered that Firefox did not adequately protect against dropping JavaScript links onto a frame. A remote attacker could, through cross-site scripting XSS, exploit this to modify the contents or steal confidential data. CVE-2012-0455 Atte Kettunen discovered a use-after-free...

USN-1387-1: Linux kernel (Maverick backport) vulnerabilities

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. CVE-2011-1927 A flaw was found in the Linux Ethernet bridge's handling of IGMP Internet Group Management Protocol packets. An...

USN-1373-2: OpenJDK 6 (ARM) vulnerabilities

USN 1373-1 fixed vulnerabilities in OpenJDK 6 in Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04 for all architectures except for ARM armel. This provides the corresponding OpenJDK 6 update for use with the ARM armel architecture in Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. Original adviso...

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-1319-1: Linux kernel (OMAP4) 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-1205-1: Linux kernel (Maverick backport) vulnerabilities

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities...

USN-1081-1: Linux kernel vulnerabilities

It was discovered that KVM did not correctly initialize certain CPU registers. A local attacker could exploit this to crash the system, leading to a denial of service. CVE-2010-3698 Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could...

USN-1071-1: Linux kernel vulnerabilities

Tavis Ormandy discovered that the Linux kernel did not properly implement exception fixup. A local attacker could exploit this to crash the kernel, leading to a denial of service. CVE-2010-3086 Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signednes...

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-972-1: FreeType vulnerabilities

It was discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges...

USN-940-2: Kerberos vulnerability

USN-940-1 fixed vulnerabilities in Kerberos. This update provides the corresponding updates for Ubuntu 10.04. Original advisory details: Joel Johnson, Brian Almeida, and Shawn Emery discovered that Kerberos did not correctly verify certain packet structures. An unauthenticated remote attacker cou...

USN-915-1: Thunderbird vulnerabilities

Several flaws were discovered in the JavaScript engine of Thunderbird. If a user had JavaScript enabled and were tricked into viewing malicious web content, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program...

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-781-1: Pidgin vulnerabilities

It was discovered that Pidgin did not properly handle certain malformed messages when sending a file using the XMPP protocol handler. If a user were tricked into sending a file, a remote attacker could send a specially crafted response and cause Pidgin to crash, or possibly execute arbitrary code...

USN-757-1: Ghostscript vulnerabilities

It was discovered that Ghostscript contained a buffer underflow in its CCITTFax decoding filter. If a user or automated system were tricked into opening a crafted PDF file, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program...

USN-692-1: Gadu vulnerability

It was discovered that the Gadu library, used by some Instant Messaging clients, did not correctly verify certain packet sizes from the server. If a user connected to a malicious server, clients using Gadu could be made to crash, leading to a denial of service...

USN-664-1: Tk vulnerability

It was discovered that Tk could be made to overrun a buffer when loading certain images. If a user were tricked into opening a specially crafted GIF image, remote attackers could cause a denial of service or execute arbitrary code with user privileges...

USN-577-1: Linux kernel vulnerability

Wojciech Purczynski discovered that the vmsplice system call did not properly perform verification of user-memory pointers. A local attacker could exploit this to overwrite arbitrary kernel memory and gain root privileges. CVE-2008-0600...

USN-528-1: MySQL vulnerabilities

Neil Kettle discovered that MySQL could be made to dereference a NULL pointer and divide by zero. An authenticated user could exploit this with a crafted IF clause, leading to a denial of service. CVE-2007-2583 Victoria Reznichenko discovered that MySQL did not always require the DROP privilege. ...

USN-481-1: ImageMagick vulnerabilities

Multiple vulnerabilities were found in ImageMagick's handling of DCM and WXD image files. By tricking a user into processing a specially crafted image with an application that uses imagemagick, an attacker could execute arbitrary code with the user's privileges...

USN-275-1: Mozilla vulnerabilities

Web pages with extremely long titles caused subsequent launches of Mozilla browser to hang for up to a few minutes, or caused Mozilla to crash on computers with insufficient memory. CVE-2005-4134 Igor Bukanov discovered that the JavaScript engine did not properly declare some temporary variables...

USN-197-1: Shorewall vulnerability

A firewall bypass vulnerability has been found in shorewall. If MACLISTTTL was set to a value greater than 0 or MACLISTDISPOSITION was set to "ACCEPT" in /etc/shorewall/shorewall.conf, and a client was positively identified through its MAC address, that client bypassed all other policies/rules in...

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-29-1: samba vulnerability

During an audit of the Samba 3.x code base Stefan Esser discovered a Unicode file name buffer overflow within the handling of TRANSACT2QFILEPATHINFO replies. A malicious samba user with write access to a share could exploit this by creating specially crafted path names files with very long names...

USN-9-1: tetex-bin vulnerabilities

Chris Evans and Marcus Meissner recently discovered several integer overflow vulnerabilities in xpdf, a viewer for PDF files. Because tetex-bin contains xpdf code, it is also affected. These vulnerabilities could be exploited by an attacker providing a specially crafted TeX, LaTeX, or PDF file...

USN-7488-1: Python vulnerabilities

It was discovered that Python incorrectly handled parsing bracketed hosts. A remote attacker could possibly use this issue to perform a Server-Side Request Forgery SSRF attack. This issue only affected python 2.7 and python3.4 on Ubuntu 14.04 LTS; python2.7 on Ubuntu 16.04 LTS; python2.7,...

USN-7467-1: libxml2 vulnerabilities

It was discovered that the libxml2 Python bindings incorrectly handled certain return values. An attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service. CVE-2025-32414 It was discovered that libxml2 incorrectly handled certain memory operations. A remot...

USN-7435-1: Protocol Buffers vulnerability

It was discovered that Protocol Buffers incorrectly handled memory when receiving malicious input using the Java bindings. An attacker could possibly use this issue to cause a denial of service...

USN-6742-2: Linux kernel vulnerabilities

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...

USN-6305-2: PHP vulnerabilities

USN-6305-1 fixed several vulnerabilities in PHP. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: It was discovered that PHP incorrectly handled certain XML files. An attacker could possibly use this issue to...

USN-6598-1: Paramiko vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

USN-6494-2: Linux kernel vulnerabilities

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service system crash. CVE-2023-31085 Lucas Leong discovered that the netfilter subsystem in the...

USN-6495-2: Linux kernel vulnerabilities

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service system crash. CVE-2023-31085 Manfred Rudigier discovered that the IntelR PCI-Express Gigab...

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...