Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-3581-1: Linux kernel vulnerabilities

22 February 2018

Several security issues were fixed in the Linux kernel.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

Mohamed Ghannam discovered that the IPv4 raw socket implementation in the
Linux kernel contained a race condition leading to uninitialized pointer
usage. A local attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2017-17712)

ChunYu Wang discovered that a use-after-free vulnerability existed
in the SCTP protocol implementation in the Linux kernel. A local
attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code, (CVE-2017-15115)

Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP
protocol implementation in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-8824)

USN-3541-1 mitigated CVE-2017-5715 (Spectre Variant 2) for the
amd64 architecture in Ubuntu 17.10. This update provides the
compiler-based retpoline kernel mitigation for the amd64 and i386
architectures. Original advisory details:

Jann Horn discovered that microprocessors utilizing speculative execution
and branch prediction may allow unauthorized memory reads via sidechannel
attacks. This flaw is known as Spectre. A local attacker could use this to
expose sensitive information, including kernel memory. (CVE-2017-5715)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.10

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

Related notices

  • USN-3583-2: linux-lts-trusty, linux-image-3.13.0-142-generic-lpae, linux-image-3.13.0-142-generic, linux-image-generic-lpae-lts-trusty, linux-image-generic-lts-trusty
  • USN-3582-2: linux-lts-xenial, linux-image-4.4.0-1014-aws, linux-image-4.4.0-116-generic-lpae, linux-aws, linux-image-4.4.0-116-generic, linux-image-4.4.0-116-powerpc64-emb, linux-image-4.4.0-116-powerpc64-smp, linux-image-extra-4.4.0-116-generic, linux-image-4.4.0-116-powerpc-e500mc, linux-image-4.4.0-116-lowlatency, linux-image-4.4.0-116-powerpc-smp
  • USN-3581-3: linux-raspi2, linux-image-4.13.0-1014-raspi2, linux-image-raspi2
  • USN-3582-1: linux-image-4.4.0-1052-aws, linux-image-4.4.0-1019-kvm, linux-image-4.4.0-1087-snapdragon, linux-image-4.4.0-116-generic-lpae, linux-raspi2, linux-image-4.4.0-116-powerpc-e500mc, linux-aws, linux-image-4.4.0-116-generic, linux-image-4.4.0-1085-raspi2, linux-image-4.4.0-116-powerpc64-emb, linux-snapdragon, linux-image-4.4.0-116-powerpc64-smp, linux-image-extra-4.4.0-116-generic, linux, linux-kvm, linux-image-4.4.0-116-lowlatency, linux-image-4.4.0-116-powerpc-smp
  • USN-3583-1: linux-image-3.13.0-142-lowlatency, linux-image-3.13.0-142-powerpc64-smp, linux-image-extra-3.13.0-142-generic, linux-image-3.13.0-142-generic-lpae, linux-image-3.13.0-142-powerpc64-emb, linux-image-3.13.0-142-powerpc-e500, linux-image-3.13.0-142-generic, linux-image-3.13.0-142-powerpc-e500mc, linux, linux-image-3.13.0-142-powerpc-smp
  • USN-3581-2: linux-hwe, linux-oem, linux-image-extra-4.13.0-1011-gcp, linux-azure, linux-gcp, linux-image-4.13.0-1011-gcp, linux-image-4.13.0-36-generic-lpae, linux-image-4.13.0-1011-azure, linux-image-4.13.0-36-generic, linux-image-extra-4.13.0-1011-azure, linux-image-extra-4.13.0-36-generic, linux-image-4.13.0-36-lowlatency, linux-image-4.13.0-1021-oem
  • USN-3530-1: webkit2gtk, gir1.2-javascriptcoregtk-4.0, libjavascriptcoregtk-4.0-18, libjavascriptcoregtk-4.0-dev, libwebkit2gtk-4.0-37, libwebkit2gtk-4.0-37-gtk2, libwebkit2gtk-4.0-dev, gir1.2-webkit2-4.0, libjavascriptcoregtk-4.0-bin, libwebkit2gtk-4.0-doc
  • USN-3594-1: linux-image-3.13.0-143-powerpc64-smp, linux-image-3.13.0-143-powerpc64-emb, linux-image-3.13.0-143-generic, linux-image-3.13.0-143-generic-lpae, linux-image-3.13.0-143-powerpc-e500mc, linux-image-3.13.0-143-lowlatency, linux-image-extra-3.13.0-143-generic, linux, linux-image-3.13.0-143-powerpc-smp, linux-image-3.13.0-143-powerpc-e500
  • USN-3580-1: linux-image-3.2.0-133-generic-pae, linux-image-generic-pae, linux, linux-image-generic, linux-image-3.2.0-133-generic
  • USN-3620-2: linux-lts-trusty, linux-image-3.13.0-144-generic, linux-image-generic-lpae-lts-trusty, linux-image-3.13.0-144-generic-lpae, linux-image-generic-lts-trusty
  • USN-3541-2: linux-image-extra-4.13.0-1006-azure, linux-hwe, linux-image-extra-4.13.0-1007-gcp, linux-image-4.13.0-31-generic-lpae, linux-oem, linux-image-4.13.0-31-generic, linux-image-extra-4.13.0-31-generic, linux-azure, linux-gcp, linux-image-4.13.0-1017-oem, linux-image-4.13.0-31-lowlatency, linux-image-4.13.0-1007-gcp, linux-image-4.13.0-1006-azure
  • USN-3531-3: intel-microcode
  • USN-3560-1: qemu-system-s390x, qemu-block-extra, qemu-system-common, qemu-system-misc, qemu-user-static, qemu-kvm, qemu-system-ppc, qemu-system, qemu-common, qemu-utils, qemu-system-aarch64, qemu-keymaps, qemu, qemu-user-binfmt, qemu-guest-agent, qemu-system-mips, qemu-user, qemu-system-arm, qemu-system-x86, qemu-system-sparc
  • USN-3531-1: intel-microcode
  • USN-3540-1: linux-image-4.4.0-112-generic-lpae, linux-image-4.4.0-112-powerpc64-emb, linux-image-extra-4.4.0-112-generic, linux-image-4.4.0-112-generic, linux-image-4.4.0-112-powerpc-e500mc, linux-euclid, linux-image-4.4.0-112-powerpc-smp, linux-aws, linux-image-4.4.0-1049-aws, linux-image-extra-4.4.0-9023-euclid, linux, linux-image-4.4.0-112-lowlatency, linux-image-4.4.0-112-powerpc64-smp, linux-image-4.4.0-9023-euclid
  • USN-3540-2: linux-lts-xenial, linux-image-extra-4.4.0-111-generic, linux-image-4.4.0-111-powerpc64-emb, linux-image-4.4.0-1011-aws, linux-image-4.4.0-111-lowlatency, linux-image-4.4.0-111-powerpc-e500mc, linux-image-4.4.0-111-powerpc-smp, linux-image-4.4.0-111-generic-lpae, linux-aws, linux-image-4.4.0-111-powerpc64-smp, linux-image-4.4.0-111-generic
  • USN-3561-1: libvirt-doc, libvirt-dev, libvirt0, libvirt, libvirt-bin
  • USN-3549-1: linux-kvm, linux-image-4.4.0-1017-kvm
  • USN-3777-3: linux-image-unsigned-4.15.0-1025-azure, linux-azure
  • USN-3690-1: amd64-microcode
  • USN-3597-2: linux-image-4.13.0-37-lowlatency, linux-hwe, linux-image-4.13.0-37-generic, linux-image-extra-4.13.0-37-generic, linux-image-4.13.0-37-generic-lpae
  • USN-3516-1: firefox-locale-pl, firefox-locale-hu, firefox-mozsymbols, firefox-locale-fa, firefox-locale-zu, firefox-locale-ga, firefox-locale-th, firefox-locale-mk, firefox-locale-pa, firefox-locale-sk, firefox-locale-ru, firefox-locale-ast, firefox-locale-vi, firefox-locale-cy, firefox, firefox-locale-en, firefox-locale-cs, firefox-locale-el, firefox-locale-hi, firefox-testsuite, firefox-locale-ca, firefox-locale-cak, firefox-locale-gl, firefox-locale-gd, firefox-locale-es, firefox-locale-or, firefox-locale-id, firefox-locale-lg, firefox-locale-tr, firefox-locale-gu, firefox-locale-bs, firefox-locale-de, firefox-locale-xh, firefox-locale-mai, firefox-locale-my, firefox-locale-nso, firefox-locale-hy, firefox-locale-he, firefox-locale-it, firefox-locale-bg, firefox-locale-ar, firefox-locale-nl, firefox-locale-uz, firefox-locale-sv, firefox-locale-ms, firefox-locale-sr, firefox-locale-ka, firefox-locale-is, firefox-locale-km, firefox-locale-fy, firefox-globalmenu, firefox-locale-ml, firefox-locale-csb, firefox-locale-an, firefox-locale-af, firefox-locale-hr, firefox-locale-lt, firefox-locale-gn, firefox-locale-nb, firefox-locale-br, firefox-locale-oc, firefox-locale-az, firefox-locale-et, firefox-locale-ko, firefox-locale-mr, firefox-locale-te, firefox-locale-lv, firefox-locale-kab, firefox-locale-fi, firefox-locale-nn, firefox-locale-be, firefox-locale-pt, firefox-locale-ku, firefox-locale-zh-hant, firefox-locale-da, firefox-locale-eo, firefox-locale-fr, firefox-locale-eu, firefox-locale-mn, firefox-locale-hsb, firefox-locale-ta, firefox-locale-ur, firefox-locale-kn, firefox-locale-kk, firefox-locale-as, firefox-locale-sl, firefox-locale-ja, firefox-locale-ro, firefox-locale-zh-hans, firefox-locale-uk, firefox-locale-si, firefox-locale-sw, firefox-dev, firefox-locale-bn, firefox-locale-sq
  • USN-3541-1: linux-image-4.13.0-31-generic, linux-image-lowlatency, linux-image-4.13.0-31-lowlatency, linux, linux-image-generic
  • USN-3597-1: linux-image-4.13.0-37-lowlatency, linux-image-4.13.0-37-generic, linux-image-4.13.0-37-generic-lpae, linux-image-lowlatency, linux-image-raspi2, linux-image-generic-lpae, linux-image-4.13.0-1015-raspi2, linux-raspi2, linux, linux-image-generic
  • USN-3542-1: linux-image-extra-3.13.0-141-generic, linux-image-3.13.0-141-generic-lpae, linux-image-3.13.0-141-lowlatency, linux-image-3.13.0-141-powerpc-e500mc, linux-image-3.13.0-141-powerpc-e500, linux-image-3.13.0-141-generic, linux-image-3.13.0-141-powerpc64-smp, linux, linux-image-3.13.0-141-powerpc-smp, linux-image-3.13.0-141-powerpc64-emb
  • USN-3542-2: linux-lts-trusty, linux-image-3.13.0-140-generic, linux-image-generic-lts-trusty