USN-1448-1: 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-1433-1: Linux kernel (Oneiric backport) vulnerabilities

A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. CVE-2011-4086 Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the...

USN-1430-2: ubufox update

USN-1430-1 fixed vulnerabilities in Firefox. This update provides an updated ubufox package for use with the latest Firefox. Original advisory details: Bob Clary, Christian Holler, Brian Hackett, Bobby Holley, Gary Kwong, Hilary Hall, Honza Bambas, Jesse Ruderman, Julian Seward, and Olli Pettay...

USN-1428-1: OpenSSL vulnerability

It was discovered that the fix for CVE-2012-2110 was incomplete for OpenSSL 0.9.8. 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. Ubuntu 11.10 was not affected by this issue...

USN-1400-4: Thunderbird regressions

USN-1400-3 fixed vulnerabilities in Thunderbird. The new Thunderbird version caused a regression in IMAP connections and mail filtering. This update fixes the problem. Original advisory details: Soroush Dalili discovered that Firefox did not adequately protect against dropping JavaScript links on...

USN-1401-2: Thunderbird vulnerabilities

USN-1401-1 fixed vulnerabilities in Xulrunner. This update provides the corresponding fixes for Thunderbird. Original advisory details: It was discovered that a flaw in the Mozilla SVG implementation could result in an out-of-bounds memory access if SVG elements were removed during a...

USN-1390-1: Linux kernel vulnerabilities

Dan Rosenberg reported errors in the OSS Open Sound System MIDI interface. A local attacker on non-x86 systems might be able to cause a denial of service. CVE-2011-1476 Dan Rosenberg reported errors in the kernel's OSS Open Sound System driver for Yamaha FM synthesizer chips. A local user can...

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-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-1297-1: Django vulnerabilities

Pall McMillan discovered that Django used the root namespace when storing cached session data. A remote attacker could exploit this to modify sessions. CVE-2011-4136 Paul McMillan discovered that Django would not timeout on arbitrary URLs when the application used URLFields. This could be exploit...

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-1227-1: Linux kernel vulnerabilities

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. CVE-2011-1576 Timo Warns discovered that the EFI GUID partition table was not correctly...

USN-1218-1: Linux kernel vulnerabilities

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. CVE-2010-4076, CVE-2010-4077 Alex Shi and Eric Dumazet discovered that the network stack...

USN-1212-1: Linux kernel (OMAP4) vulnerabilities

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. CVE-2011-0463 Timo Warns discovered that the LDM disk partition handli...

USN-1211-1: Linux kernel 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-1151-1: Nagios vulnerabilities

Stefan Schurtz discovered than Nagios did not properly sanitize its input when processing certain requests, 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...

USN-1092-1: Linux Kernel vulnerabilities

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. CVE-2010-4075, CVE-2010-4077 Dan Rosenberg discovered that the socket filters did not...

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-1055-1: OpenJDK vulnerabilities

It was discovered that IcedTea for Java did not properly verify signatures when handling multiply signed or partially signed JAR files, allowing an attacker to cause code to execute that appeared to come from a verified source. CVE-2011-0025 USN 1052-1 fixed a vulnerability in OpenJDK for Ubuntu...

USN-1011-2: Thunderbird vulnerability

USN-1011-1 fixed a vulnerability in Firefox. This update provides the corresponding update for Thunderbird. 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-999-1: Kerberos vulnerability

Mike Roszkowski discovered that the Kerberos KDC did not correctly validate the contents of certain messages. If an authenticated remote attacker sent specially crafted TGS requests, the KDC service would crash, leading to a denial of service...

USN-974-1: Linux kernel vulnerabilities

Gael Delalleu, Rafal Wojtczuk, and Brad Spengler discovered that the memory manager did not properly handle when applications grow stacks into adjacent memory regions. A local attacker could exploit this to gain control of certain applications, potentially leading to privilege escalation, as...

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-858-1: OpenLDAP vulnerability

It was discovered that OpenLDAP did not correctly handle SSL certificates with zero bytes in the Common Name. A remote attacker could exploit this to perform a machine-in-the-middle attack to view sensitive information or alter encrypted communications...

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-836-1: WebKit vulnerabilities

It was discovered that WebKit did not properly handle certain SVGPathList data structures. If a user were tricked into viewing a malicious website, an attacker could exploit this to execute arbitrary code with the privileges of the user invoking the program. CVE-2009-0945 Several flaws were...

USN-812-1: Subversion vulnerability

Matt Lewis discovered that Subversion did not properly sanitize its input when processing svndiff streams, leading to various integer and heap overflows. If a user or automated system processed crafted input, a remote attacker could cause a denial of service or potentially execute arbitrary code ...

USN-798-1: Firefox and Xulrunner vulnerabilities

Several flaws were discovered in the Firefox browser and JavaScript engines. 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-2009-2462,...

USN-776-2: KVM regression

USN-776-1 fixed vulnerabilities in KVM. Due to an incorrect fix, a regression was introduced in Ubuntu 8.04 LTS that caused KVM to fail to boot virtual machines started via libvirt. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Avi Kivity discovered...

USN-762-1: APT vulnerabilities

Alexandre Martani discovered that the APT daily cron script did not check the return code of the date command. If a machine is configured for automatic updates and is in a time zone where DST occurs at midnight, under certain circumstances automatic updates might not be applied and could become...

USN-666-1: Dovecot vulnerability

It was discovered that certain email headers were not correctly handled by Dovecot. If a remote attacker sent a specially crafted email to a user with a mailbox managed by Dovecot, that user's mailbox would become inaccessible through Dovecot, leading to a denial of service...

USN-649-1: OpenSSH vulnerabilities

It was discovered that the ForceCommand directive could be bypassed. If a local user created a malicious /.ssh/rc file, they could execute arbitrary commands as their user id. This only affected Ubuntu 7.10. CVE-2008-1657 USN-355-1 fixed vulnerabilities in OpenSSH. It was discovered that the fixe...

USN-632-1: Python vulnerabilities

It was discovered that there were new integer overflows in the imageop module. If an attacker were able to trick a Python application into processing a specially crafted image, they could execute arbitrary code with user privileges. CVE-2008-1679 Justin Ferguson discovered that the zlib module di...

USN-612-3: OpenVPN vulnerability

A weakness has been discovered in the random number generator used by OpenSSL on Debian and Ubuntu systems. As a result of this weakness, certain encryption keys are much more common than they should be, such that an attacker could guess the key through a brute-force attack given minimal knowledg...

USN-568-1: PostgreSQL vulnerabilities

Nico Leidecker discovered that PostgreSQL did not properly restrict dblink functions. An authenticated user could exploit this flaw to access arbitrary accounts and execute arbitrary SQL queries. CVE-2007-3278, CVE-2007-6601 It was discovered that the TCL regular expression parser used by...

USN-558-1: Linux kernel vulnerabilities

The minix filesystem did not properly validate certain filesystem values. If a local attacker could trick the system into attempting to mount a corrupted minix filesystem, the kernel could be made to hang for long periods of time, resulting in a denial of service. CVE-2006-6058 Certain calculatio...

USN-507-1: tcp-wrappers vulnerability

It was discovered that the TCP wrapper library was incorrectly allowing connections to services that did not specify server-side connection details. Remote attackers could connect to services that had been configured to block such connections. This only affected Ubuntu Feisty...

USN-470-1: Linux kernel vulnerabilities

USN-464-1 fixed several vulnerabilities in the Linux kernel. Some additional code changes were accidentally included in the Feisty update which caused trouble for some people who were not using UUID-based filesystem mounts. These changes have been reverted. We apologize for the inconvenience. For...

USN-281-1: Linux kernel vulnerabilities

The sysmbind function did not properly verify the validity of the 'maxnod' argument. A local user could exploit this to trigger a buffer overflow, which caused a kernel crash. CVE-2006-0557 The SELinux module did not correctly handle the tracer SID when a process was already being traced. A local...

USN-250-1: Linux kernel vulnerability

Herbert Xu discovered a remote Denial of Service vulnerability in the ICMP packet handler. In some situations a memory allocation was released twice, which led to memory corruption. A remote attacker could exploit this to crash the machine...

USN-208-1: graphviz vulnerability

Javier Fernández-Sanguino Peña discovered that the "dotty" tool created and used temporary files in an insecure way. A local attacker could exploit this with a symlink attack to create or overwrite arbitrary files with the privileges of the user running dotty...

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-169-1: Linux kernel vulnerabilities

David Howells discovered a local Denial of Service vulnerability in the key session joining function. Under certain user-triggerable conditions, a semaphore was not released properly, which caused processes which also attempted to join a key session to hang forever. This only affects Ubuntu 5.04...

USN-47-1: Linux kernel vulnerabilities

Georgi Guninski discovered two Denial of Service vulnerabilities in the Linux kernel. An integer overflow in the vcresize function caused the memory allocation for the new screen being too short, thus causing a buffer overflow and a kernel crash. There was also a memory leak in the ipoptionsget...

USN-34-1: OpenSSH information leakage

@Mediaservice.net discovered two information leaks in the OpenSSH server. When using password authentication, an attacker could test whether a login name exists by measuring the time between failed login attempts, i. e. the time after which the "password:" prompt appears again. A similar issue...

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-6704-3: Linux kernel (Oracle) vulnerabilities

It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service system crash. CVE-2023-23000 Quentin Minster discovered that the KSMBD...

USN-6702-2: Linux kernel vulnerabilities

It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service system crash. CVE-2023-23000 It was discovered that the ARM Mali Display Processor...

USN-6681-4: Linux kernel (AWS) vulnerabilities

Wenqing Liu discovered that the f2fs file system implementation in the Linux kernel did not properly validate inode types while performing garbage collection. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system...

USN-6680-3: Linux kernel (AWS) vulnerabilities

黄思聪 discovered that the NFC Controller Interface NCI implementation in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service system crash...