Ubuntu Security Notice 3664-2 - USN-3664-1 fixed a vulnerability in Apport. Sander Bos reported that Ubuntu 14.04 LTS was also vulnerable to this issue, but was incorrectly omitted from the previous updates. This update provides the corresponding update for Ubuntu 14.04 LTS. Sander Bos discovered that Apport incorrectly handled core dumps when certain files are missing from /proc. A local attacker could possibly use this issue to cause a denial of service, gain root privileges, or escape from containers. Various other issues were also addressed.
67273d8fdf19a09dbdc393e426a31d0cUbuntu Security Notice 3668-1 - It was discovered that Exempi incorrectly handled certain media files. If a user or automated system were tricked into opening a specially crafted file, a remote attacker could cause Exempi to hang or crash, resulting in a denial of service, or possibly execute arbitrary code.
30f478a7ea99f4d7e41b68bbd1c3c994Ubuntu Security Notice 3666-1 - Divya K Konoor discovered Oslo middleware was vulnerable to an information disclosure. A local attacker could exploit this flaw to obtain sensitive information from OpenStack component error logs.
2290884fc4716154beacb93bd3bd2ecbUbuntu Security Notice 3667-1 - It was discovered that libytnef incorrectly handled certain files. An attacker could possibly use this to cause a denial of service. It was discovered that libytnef incorrectly handled certain files. An attacker could possibly use this to access sensitive information.
28e6cdda236edaa99c5a39b78a1ecb67Ubuntu Security Notice 3665-1 - It was discovered that Tomcat incorrectly handled being configured with HTTP PUTs enabled. A remote attacker could use this issue to upload a JSP file to the server and execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 17.10. It was discovered that Tomcat contained incorrect documentation regarding description of the search algorithm used by the CGI Servlet to identify which script to execute. This issue only affected Ubuntu 17.10. Various other issues were also addressed.
4010dd1ed3cd225ed49a240fc59a47d5Ubuntu Security Notice 3664-1 - Sander Bos discovered that Apport incorrectly handled core dumps when certain files are missing from /proc. A local attacker could possibly use this issue to cause a denial of service, gain root privileges, or escape from containers.
0c542d9aa0e59f4f0b5dae590c06df0bUbuntu Security Notice 3663-1 - It was discovered that HAProxy incorrectly handled certain requests. An attacker could possibly use this to expose sensitive information.
2c9cc5196d941cf57911e53a88a6a961Ubuntu Security Notice 3662-1 - It was discovered that the NVIDIA graphics drivers contained flaws in the kernel mode layer. A local attacker could use these issues to cause a denial of service or potentially escalate their privileges on the system.
42285ffd50a082c06276f6a90363d77bUbuntu Security Notice 3661-1 - It was discovered that Batik incorrectly handled certain XML. An attacker could possibly use this to expose sensitive information.
c03b80990ccab1e2f74ed96dcb2dbee3Ubuntu Security Notice 3586-2 - USN-3586-1 fixed a vulnerability in DHCP. This update provides the corresponding update for Ubuntu 12.04 ESM. Felix Wilhelm discovered that the DHCP client incorrectly handled certain malformed responses. A remote attacker could use this issue to cause the DHCP client to crash, resulting in a denial of service, or possibly execute arbitrary code. In the default installation, attackers would be isolated by the dhclient AppArmor profile. Various other issues were also addressed.
ec9c25c8d7d65f1459d5b60f1ae14ab6Ubuntu Security Notice 3660-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service via application crash, install lightweight themes without user interaction, or execute arbitrary code. An issue was discovered when processing message headers in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit this to cause a denial of service via application hang. Various other issues were also addressed.
11fa09669977d60b25439b9cb7f6291aUbuntu 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.
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