The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3880-1 advisory.

    It was discovered that the CIFS client implementation in the Linux kernel did not properly handle setup     negotiation during session recovery, leading to a NULL pointer exception. An attacker could use this to     create a malicious CIFS server that caused a denial of service (client system crash). (CVE-2018-1066)

    Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly     restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to     expose sensitive information. (CVE-2018-17972)

    Jann Horn discovered that the mremap() system call in the Linux kernel did not properly flush the TLB when     completing, potentially leaving access to a physical page after it has been released to the page     allocator. A local attacker could use this to cause a denial of service (system crash), expose sensitive     information, or possibly execute arbitrary code. (CVE-2018-18281)

    It was discovered that the socket implementation in the Linux kernel contained a type confusion error that     could lead to memory corruption. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2018-9568)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2016-10741: fs/xfs/xfs_aops.c allowed local users to cause a denial of service (system crash) because there is a race condition between direct and memory-mapped I/O (associated with a hole) that is handled with BUG_ON instead of an I/O failure (bnc#1114920 bnc#1124010).

CVE-2017-18360: In change_port_settings in drivers/usb/serial/io_ti.c local users could cause a denial of service by division-by-zero in the serial device layer by trying to set very high baud rates (bnc#1123706).

CVE-2018-9568: In sk_clone_lock of sock.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (bnc#1118319).

CVE-2018-19407: The vcpu_scan_ioapic function in arch/x86/kvm/x86.c allowed local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized (bnc#1116841).

CVE-2018-19824: A local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c (bnc#1118152).

CVE-2018-19985: The function hso_probe read if_num from the USB device (as an u8) and used it without a length check to index an array, resulting in an OOB memory read in hso_probe or hso_get_config_data that could be used by local attackers (bnc#1120743).

CVE-2018-20169: The USB subsystem mishandled size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c (bnc#1119714).

CVE-2019-7222: A information leak in exception handling in KVM could be used to expose host memory to guests. (bnc#1124735).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
121598	Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3880-1)	Nessus	Ubuntu Local Security Checks	2/5/2019	8/27/2024	high
122891	SUSE SLES11 Security Update : kernel (SUSE-SU-2019:13979-1)	Nessus	SuSE Local Security Checks	3/18/2019	6/13/2024	high

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