[SECURITY] [DLA 654-1] libxfixes security update

2016-10-1408:41:10

lists.debian.org

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.009 Low

EPSS

Percentile

82.6%

JSON

Package : libxfixes
Version : 1:5.0-4+deb7u2
CVE ID : CVE-2016-7944
Debian Bug : 840442

It was discovered that there was a integer overflow in libxfixes, a library
providing a client interface to the X11 'XFIXES' extension.

The 32 bit field "rep.length" was not checked for validity, which allowed an
integer overflow on 32 bit systems. A malicious server could send INT_MAX as
"length" which was then multiplied by the size of XRectangle. In this case the
client would not read the whole data from server, getting out of sync.

For Debian 7 "Wheezy", this issue has been fixed in libxfixes version
1:5.0-4+deb7u2.

We recommend that you upgrade your libxfixes packages.

Regards,

  ,&#x27;&#x27;`.
 : :&#x27;  :     Chris Lamb
 `. `&#x27;`      [email protected] / chris-lamb.co.uk
   `-

OSVersionArchitecturePackageVersionFilename
Debian8amd64libxfixes3< 1:5.0.1-2+deb8u1libxfixes3_1:5.0.1-2+deb8u1_amd64.deb
Debian7armellibxfixes-dev< 1:5.0-4+deb7u2libxfixes-dev_1:5.0-4+deb7u2_armel.deb
Debian8armhflibxfixes3< 1:5.0.1-2+deb8u1libxfixes3_1:5.0.1-2+deb8u1_armhf.deb
Debian8mipslibxfixes3< 1:5.0.1-2+deb8u1libxfixes3_1:5.0.1-2+deb8u1_mips.deb
Debian7i386libxfixes-dev< 1:5.0-4+deb7u2libxfixes-dev_1:5.0-4+deb7u2_i386.deb
Debian8powerpclibxfixes3-dbg< 1:5.0.1-2+deb8u1libxfixes3-dbg_1:5.0.1-2+deb8u1_powerpc.deb
Debian8ppc64ellibxfixes-dev< 1:5.0.1-2+deb8u1libxfixes-dev_1:5.0.1-2+deb8u1_ppc64el.deb
Debian8armellibxfixes-dev< 1:5.0.1-2+deb8u1libxfixes-dev_1:5.0.1-2+deb8u1_armel.deb
Debian8arm64libxfixes-dev< 1:5.0.1-2+deb8u1libxfixes-dev_1:5.0.1-2+deb8u1_arm64.deb
Debian8ppc64ellibxfixes3-dbg< 1:5.0.1-2+deb8u1libxfixes3-dbg_1:5.0.1-2+deb8u1_ppc64el.deb

OS	Version	Architecture	Package	Version	Filename
Debian	8	amd64	libxfixes3	< 1:5.0.1-2+deb8u1	libxfixes3_1:5.0.1-2+deb8u1_amd64.deb
Debian	7	armel	libxfixes-dev	< 1:5.0-4+deb7u2	libxfixes-dev_1:5.0-4+deb7u2_armel.deb
Debian	8	armhf	libxfixes3	< 1:5.0.1-2+deb8u1	libxfixes3_1:5.0.1-2+deb8u1_armhf.deb
Debian	8	mips	libxfixes3	< 1:5.0.1-2+deb8u1	libxfixes3_1:5.0.1-2+deb8u1_mips.deb
Debian	7	i386	libxfixes-dev	< 1:5.0-4+deb7u2	libxfixes-dev_1:5.0-4+deb7u2_i386.deb
Debian	8	powerpc	libxfixes3-dbg	< 1:5.0.1-2+deb8u1	libxfixes3-dbg_1:5.0.1-2+deb8u1_powerpc.deb
Debian	8	ppc64el	libxfixes-dev	< 1:5.0.1-2+deb8u1	libxfixes-dev_1:5.0.1-2+deb8u1_ppc64el.deb
Debian	8	armel	libxfixes-dev	< 1:5.0.1-2+deb8u1	libxfixes-dev_1:5.0.1-2+deb8u1_armel.deb
Debian	8	arm64	libxfixes-dev	< 1:5.0.1-2+deb8u1	libxfixes-dev_1:5.0.1-2+deb8u1_arm64.deb
Debian	8	ppc64el	libxfixes3-dbg	< 1:5.0.1-2+deb8u1	libxfixes3-dbg_1:5.0.1-2+deb8u1_ppc64el.deb