This bug was fixed in the package linux-lts-vivid - 3.19.0-42.48~14.04.1
---------------
linux-lts-vivid (3.19.0-42.48~14.04.1) trusty; urgency=low
[ Kamal Mostafa ]
* Release Tracking Bug
- LP: #1527519
[ Jann Horn ]
* ptrace: being capable wrt a process requires mapped uids/gids
- LP: #1527374
linux (3.19.0-42.47) vivid; urgency=low
[ Upstream Kernel Changes ]
* xen: Add RING_COPY_REQUEST()
- CVE-2015-8550
* xen-netback: don't use last request to determine minimum Tx credit
- CVE-2015-8550
* xen-netback: use RING_COPY_REQUEST() throughout
- CVE-2015-8550
* xen-blkback: only read request operation from shared ring once
- CVE-2015-8550
* xen-blkback: read from indirect descriptors only once
- CVE-2015-8550
* xen-scsiback: safely copy requests
- CVE-2015-8550
* xen/pciback: Save xen_pci_op commands before processing it
- CVE-2015-8550
* xen/pciback: Return error on XEN_PCI_OP_enable_msi when device has MSI
or MSI-X enabled
- CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
* xen/pciback: Return error on XEN_PCI_OP_enable_msix when device has MSI
or MSI-X enabled
- CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
* xen/pciback: Do not install an IRQ handler for MSI interrupts.
- CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
* xen/pciback: For XEN_PCI_OP_disable_msi[|x] only disable if device has
MSI(X) enabled.
- CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
* xen/pciback: Don't allow MSI-X ops if PCI_COMMAND_MEMORY is not set.
- CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
-- Luis Henriques <luis.henriq...@canonical.com> Fri, 18 Dec 2015
09:59:09 +0000
** Changed in: linux-lts-vivid (Ubuntu)
Status: New => Fix Released
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8550
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8551
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8552
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8553
** Changed in: linux-lts-vivid (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1527374
Title:
privilege escalation on attach through ptrace
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