Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service. CVE-2015-3290 Andy Lutomirski discovered that the Linux kernel does not properly handle nested NMIs. A local, unprivileged user could use this flaw for privilege escalation. CVE-2015-3291 Andy Lutomirski discovered that under certain conditions a malicious userspace program can cause the kernel to skip NMIs leading to a denial of service. CVE-2015-4167 Carl Henrik Lunde discovered that the UDF implementation is missing a necessary length check. A local user that can mount devices could use this flaw to crash the system. CVE-2015-5157 Petr Matousek and Andy Lutomirski discovered that an NMI that interrupts userspace and encounters an IRET fault is incorrectly handled. A local, unprivileged user could use this flaw for denial of service or possibly for privilege escalation. CVE-2015-5364 It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. CVE-2015-5366 It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker can cause a denial of service against applications that use epoll by injecting a single packet with an invalid checksum. For the stable distribution (jessie), these problems have been fixed in version 3.16.7-ckt11-1+deb8u2. For the unstable distribution (sid), these problems have been fixed in version 4.0.8-2 or earlier versions. We recommend that you upgrade your linux packages.
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service.
Andy Lutomirski discovered that the Linux kernel does not properly handle nested NMIs. A local, unprivileged user could use this flaw for privilege escalation.
Andy Lutomirski discovered that under certain conditions a malicious userspace program can cause the kernel to skip NMIs leading to a denial of service.
Carl Henrik Lunde discovered that the UDF implementation is missing a necessary length check. A local user that can mount devices could use this flaw to crash the system.
Petr Matousek and Andy Lutomirski discovered that an NMI that interrupts userspace and encounters an IRET fault is incorrectly handled. A local, unprivileged user could use this flaw for denial of service or possibly for privilege escalation.
It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums.
It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker can cause a denial of service against applications that use epoll by injecting a single packet with an invalid checksum.
For the stable distribution (jessie), these problems have been fixed in version 3.16.7-ckt11-1+deb8u2.
For the unstable distribution (sid), these problems have been fixed in version 4.0.8-2 or earlier versions.
We recommend that you upgrade your linux packages.
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