*** This bug is a security vulnerability ***
Public security bug reported:
Remounting a read-only bind mount read-only in a user namespace the
MNT_LOCK_READONLY bit would be cleared, allowing an unprivileged user to
the remount a read-only mount read-write.
Break-Fix: 0c55cfc4166d9a0f38de779bd4d75a90afbe7734
a6138db815df5ee542d848318e5dae681590fccd
** Affects: linux (Ubuntu)
Importance: High
Status: New
** Affects: linux-armadaxp (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-ec2 (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-fsl-imx51 (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-lts-backport-maverick (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-lts-backport-natty (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-lts-quantal (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-lts-raring (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-lts-saucy (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-mvl-dove (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux-ti-omap4 (Ubuntu)
Importance: High
Status: Invalid
** Affects: linux (Ubuntu Lucid)
Importance: High
Status: New
** Affects: linux-armadaxp (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux-ec2 (Ubuntu Lucid)
Importance: High
Status: New
** Affects: linux-fsl-imx51 (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux-lts-backport-maverick (Ubuntu Lucid)
Importance: Undecided
Status: New
** Affects: linux-lts-backport-natty (Ubuntu Lucid)
Importance: Undecided
Status: New
** Affects: linux-lts-quantal (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux-lts-raring (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux-lts-saucy (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux-mvl-dove (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux-ti-omap4 (Ubuntu Lucid)
Importance: High
Status: Invalid
** Affects: linux (Ubuntu Precise)
Importance: High
Status: New
** Affects: linux-armadaxp (Ubuntu Precise)
Importance: High
Status: New
** Affects: linux-ec2 (Ubuntu Precise)
Importance: High
Status: Invalid
** Affects: linux-fsl-imx51 (Ubuntu Precise)
Importance: High
Status: Invalid
** Affects: linux-lts-backport-maverick (Ubuntu Precise)
Importance: Undecided
Status: New
** Affects: linux-lts-backport-natty (Ubuntu Precise)
Importance: Undecided
Status: New
** Affects: linux-lts-quantal (Ubuntu Precise)
Importance: High
Status: Invalid
** Affects: linux-lts-raring (Ubuntu Precise)
Importance: High
Status: Invalid
** Affects: linux-lts-saucy (Ubuntu Precise)
Importance: High
Status: Invalid
** Affects: linux-mvl-dove (Ubuntu Precise)
Importance: High
Status: Invalid
** Affects: linux-ti-omap4 (Ubuntu Precise)
Importance: High
Status: New
** Affects: linux (Ubuntu Trusty)
Importance: High
Status: New
** Affects: linux-armadaxp (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-ec2 (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-fsl-imx51 (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-lts-backport-maverick (Ubuntu Trusty)
Importance: Undecided
Status: New
** Affects: linux-lts-backport-natty (Ubuntu Trusty)
Importance: Undecided
Status: New
** Affects: linux-lts-quantal (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-lts-raring (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-lts-saucy (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-mvl-dove (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux-ti-omap4 (Ubuntu Trusty)
Importance: High
Status: Invalid
** Affects: linux (Ubuntu Utopic)
Importance: High
Status: New
** Affects: linux-armadaxp (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-ec2 (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-fsl-imx51 (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-lts-backport-maverick (Ubuntu Utopic)
Importance: Undecided
Status: New
** Affects: linux-lts-backport-natty (Ubuntu Utopic)
Importance: Undecided
Status: New
** Affects: linux-lts-quantal (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-lts-raring (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-lts-saucy (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-mvl-dove (Ubuntu Utopic)
Importance: High
Status: Invalid
** Affects: linux-ti-omap4 (Ubuntu Utopic)
Importance: High
Status: Invalid
** Tags: kernel-cve-tracking-bug
** Tags added: kernel-cve-tracking-bug
** Information type changed from Public to Public Security
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2014-5206
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https://bugs.launchpad.net/bugs/1356318
Title:
CVE-2014-5206
To manage notifications about this bug go to:
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