Ubuntu Security Notice 3598-2 - USN-3598-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 12.04 ESM. Phan Thanh discovered that curl incorrectly handled certain FTP paths. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
c0a7f31a20ff0b1187a6a7af47462855Ubuntu Security Notice 3659-1 - Frediano Ziglio discovered that Spice incorrectly handled certain client messages. An attacker could possibly use this to cause Spice to crash, resulting in a denial of service, or possibly execute arbitrary code.
4721707aa94311089c39bff645f29a63Ubuntu Security Notice 3658-1 - It was discovered that the procps-ng top utility incorrectly read its configuration file from the current working directory. A local attacker could possibly use this issue to escalate privileges. It was discovered that the procps-ng ps tool incorrectly handled memory. A local user could possibly use this issue to cause a denial of service. It was discovered that libprocps incorrectly handled the file2strvec function. A local attacker could possibly use this to execute arbitrary code. Various other issues were also addressed.
a8255e951f2f6a7ed7c7e65bf541bf6eUbuntu Security Notice 3655-2 - USN-3655-1 fixed vulnerabilities and added mitigations in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.
2b2541f15f41c2092f625c5522937befUbuntu Security Notice 3655-1 - Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. Jan H. Schonherr discovered that the Xen subsystem did not properly handle block IO merges correctly in some situations. An attacker in a guest vm could use this to cause a denial of service or possibly gain administrative privileges in the host. Various other issues were also addressed.
4e964cd9e83c2ee37d786d7f1d3125cbUbuntu Security Notice 3654-2 - USN-3654-1 fixed vulnerabilities and added mitigations in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.
eb9f627ac1ce2183783e17ebfafca9feUbuntu Security Notice 3654-1 - Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
e0baf24d047acd1eb6223677229f4d81Ubuntu Security Notice 3653-2 - USN-3653-1 fixed vulnerabilities and added mitigations in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.
d822ac4ef2db51e6f160548683564e7eUbuntu Security Notice 3650-1 - It was discovered that xdg-utils incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code.
6588337678fa8c37542694cd4b313345Ubuntu Security Notice 3657-1 - It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information. Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
5b70ec21b28ad41f7976b3e9f8fdebd4Ubuntu Security Notice 3656-1 - Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
85f33670a38f0065959805559c975a75This Metasploit module exploits a race condition and use-after-free in the packet_set_ring function in net/packet/af_packet.c (AF_PACKET) in the Linux kernel to execute code as root (CVE-2016-8655). The bug was initially introduced in 2011 and patched in 2016 in version 4.4.0-53.74, potentially affecting a large number of kernels; however this exploit targets only systems using Ubuntu (Trusty / Xenial) kernels 4.4.0 < 4.4.0-53, including Linux distros based on Ubuntu, such as Linux Mint. The target system must have unprivileged user namespaces enabled and two or more CPU cores. Bypasses for SMEP, SMAP and KASLR are included. Failed exploitation may crash the kernel. This Metasploit module has been tested successfully on Linux Mint 17.3 (x86_64); Linux Mint 18 (x86_64); and Ubuntu 16.04.2 (x86_64) with kernel versions 4.4.0-45-generic and 4.4.0-51-generic.
4e74e49fb99838182c2b1099fc25b230Ubuntu Security Notice 3653-1 - Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
d2121073ebaaf6b8711069fd05c71d2cUbuntu Security Notice 3652-1 - Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory.
40cb02f366a158bd0e7c8355d9613112Ubuntu Security Notice 3651-1 - Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update allows QEMU to expose new CPU features added by microcode updates to guests on amd64 and i386.
37d74fc3cc5c45d86571a4d0fe217013This Metasploit module exploits a vulnerability in the rds_page_copy_user function in net/rds/page.c (RDS) in Linux kernel versions 2.6.30 to 2.6.36-rc8 to execute code as root (CVE-2010-3904). This Metasploit module has been tested successfully on Fedora 13 (i686) with kernel version 2.6.33.3-85.fc13.i686.PAE and Ubuntu 10.04 (x86_64) with kernel version 2.6.32-21-generic.
ca0aaa65162c3d2e20a520b81415f4aeUbuntu Security Notice 3645-2 - USN-3645-1 fixed vulnerabilities in Firefox. The update caused an issue where users experienced long UI pauses in some circumstances. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, bypass same-origin restrictions, conduct cross-site scripting attacks, install lightweight themes without user interaction, spoof the filename in the downloads panel, or execute arbitrary code. Various other issues were also addressed.
d79a2b390689ee5da50dd49ae53da56cThis Metasploit module exploits a heap-out-of-bounds write in the packet_set_ring function in net/packet/af_packet.c (AF_PACKET) in the Linux kernel to execute code as root (CVE-2017-7308). The bug was initially introduced in 2011 and patched in version 4.10.6, potentially affecting a large number of kernels; however this exploit targets only systems using Ubuntu Xenial kernels 4.8.0 < 4.8.0-46, including Linux distros based on Ubuntu Xenial, such as Linux Mint. The target system must have unprivileged user namespaces enabled and two or more CPU cores. Bypasses for SMEP, SMAP and KASLR are included. Failed exploitation may crash the kernel. This Metasploit module has been tested successfully on Linux Mint 18 (x86_64) with kernel versions: 4.8.0-34-generic; 4.8.0-36-generic; 4.8.0-39-generic; 4.8.0-41-generic; 4.8.0-42-generic; 4.8.0-44-generic; 4.8.0-45-generic.
619464075778b62a92b3753066e120baUbuntu Security Notice 3646-2 - USN-3646-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that PHP incorrectly handled opcache access controls when configured to use PHP-FPM. A local user could possibly use this issue to obtain sensitive information from another user's PHP applications. Various other issues were also addressed.
ae0a82d9affb22e21c4f389ad7789281Ubuntu Security Notice 3642-2 - USN-3642-1 fixed a vulnerability in DPDK. This update provides the corresponding update for Ubuntu 17.10. Maxime Coquelin discovered that DPDK incorrectly handled guest physical ranges. A malicious guest could use this issue to possibly access sensitive information. Various other issues were also addressed.
b6d4dc201566e27c9e5c69fbb347e159Ubuntu Security Notice 3649-1 - Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values during migration. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. Cyrille Chatras discovered that QEMU incorrectly handled multiboot. An attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. Various other issues were also addressed.
328c7fe35bf9b4dcb186ccdd37961b7eUbuntu Security Notice 3648-1 - 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 arbitrary code. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. Max Dymond discovered that curl incorrectly handled certain RTSP responses. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive information. Various other issues were also addressed.
61182442578b6aa2ee7114cf2de837a2Ubuntu Security Notice 3647-1 - It was discovered that poppler incorrectly handled certain PDF files. An attacker could possibly use this to cause a denial of service. It was discovered that poppler incorrectly handled certain PDF files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS.
a1e8619a316492ba33d741cd9ed770a7Ubuntu Security Notice 3600-2 - USN-3600-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that PHP incorrectly handled the PHAR 404 error page. A remote attacker could possibly use this issue to conduct cross-site scripting attacks. Various other issues were also addressed.
79bbde3d1fefb3d77b138ef00b9b7370Ubuntu Security Notice 3646-1 - It was discovered that PHP incorrectly handled opcache access controls when configured to use PHP-FPM. A local user could possibly use this issue to obtain sensitive information from another user's PHP applications. It was discovered that the PHP iconv stream filter incorrect handled certain invalid multibyte sequences. A remote attacker could possibly use this issue to cause PHP to hang, resulting in a denial of service. Various other issues were also addressed.
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