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DebianDEBIAN:DLA-654-1:B5E17

HistoryOct 14, 2016 - 8:41 a.m.

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

2016-10-1408:41:10

lists.debian.org

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

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

AI Score

9.6

Confidence

High

EPSS

0.013

Percentile

85.8%

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
Debian8powerpclibxfixes-dev< 1:5.0.1-2+deb8u1libxfixes-dev_1:5.0.1-2+deb8u1_powerpc.deb
Debian8powerpclibxfixes3-dbg< 1:5.0.1-2+deb8u1libxfixes3-dbg_1:5.0.1-2+deb8u1_powerpc.deb
Debian7armellibxfixes3-dbg< 1:5.0-4+deb7u2libxfixes3-dbg_1:5.0-4+deb7u2_armel.deb
Debian7i386libxfixes3< 1:5.0-4+deb7u2libxfixes3_1:5.0-4+deb7u2_i386.deb
Debian7armellibxfixes-dev< 1:5.0-4+deb7u2libxfixes-dev_1:5.0-4+deb7u2_armel.deb
Debian8mipslibxfixes3-udeb< 1:5.0.1-2+deb8u1libxfixes3-udeb_1:5.0.1-2+deb8u1_mips.deb
Debian7amd64libxfixes-dev< 1:5.0-4+deb7u2libxfixes-dev_1:5.0-4+deb7u2_amd64.deb
Debian7armellibxfixes3< 1:5.0-4+deb7u2libxfixes3_1:5.0-4+deb7u2_armel.deb
Debian7armhflibxfixes3-udeb< 1:5.0-4+deb7u2libxfixes3-udeb_1:5.0-4+deb7u2_armhf.deb
Debian8mipsellibxfixes3-dbg< 1:5.0.1-2+deb8u1libxfixes3-dbg_1:5.0.1-2+deb8u1_mipsel.deb

OS	Version	Architecture	Package	Version	Filename
Debian	8	powerpc	libxfixes-dev	< 1:5.0.1-2+deb8u1	libxfixes-dev_1:5.0.1-2+deb8u1_powerpc.deb
Debian	8	powerpc	libxfixes3-dbg	< 1:5.0.1-2+deb8u1	libxfixes3-dbg_1:5.0.1-2+deb8u1_powerpc.deb
Debian	7	armel	libxfixes3-dbg	< 1:5.0-4+deb7u2	libxfixes3-dbg_1:5.0-4+deb7u2_armel.deb
Debian	7	i386	libxfixes3	< 1:5.0-4+deb7u2	libxfixes3_1:5.0-4+deb7u2_i386.deb
Debian	7	armel	libxfixes-dev	< 1:5.0-4+deb7u2	libxfixes-dev_1:5.0-4+deb7u2_armel.deb
Debian	8	mips	libxfixes3-udeb	< 1:5.0.1-2+deb8u1	libxfixes3-udeb_1:5.0.1-2+deb8u1_mips.deb
Debian	7	amd64	libxfixes-dev	< 1:5.0-4+deb7u2	libxfixes-dev_1:5.0-4+deb7u2_amd64.deb
Debian	7	armel	libxfixes3	< 1:5.0-4+deb7u2	libxfixes3_1:5.0-4+deb7u2_armel.deb
Debian	7	armhf	libxfixes3-udeb	< 1:5.0-4+deb7u2	libxfixes3-udeb_1:5.0-4+deb7u2_armhf.deb
Debian	8	mipsel	libxfixes3-dbg	< 1:5.0.1-2+deb8u1	libxfixes3-dbg_1:5.0.1-2+deb8u1_mipsel.deb