Executive Summary

Informations
Name CVE-2011-2895 First vendor Publication 2011-08-19
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2895

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:14612
 
Oval ID: oval:org.mitre.oval:def:14612
Title: USN-1191-1 -- libXfont vulnerability
Description: libxfont: X11 font rasterisation library libXfont could be made to run programs as an administrator if it opened a specially crafted file.
Family: unix Class: patch
Reference(s): USN-1191-1
CVE-2011-2895
 Version: 5
Platform(s): Ubuntu 11.04
Ubuntu 10.04
Ubuntu 10.10
 Product(s): libXfont
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:14918
 
Oval ID: oval:org.mitre.oval:def:14918
Title: DSA-2293-1 libxfont -- buffer overflow
Description: Tomas Hoger found a buffer overflow in the X.Org libXfont library, which may allow for a local privilege escalation through crafted font files.
Family: unix Class: patch
Reference(s): DSA-2293-1
CVE-2011-2895
 Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
 Product(s): libxfont
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22062
 
Oval ID: oval:org.mitre.oval:def:22062
Title: RHSA-2011:1154: libXfont security update (Important)
Description: The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.
Family: unix Class: patch
Reference(s): RHSA-2011:1154-01
CESA-2011:1154
CVE-2011-2895
 Version: 4
Platform(s): Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
CentOS Linux 5
CentOS Linux 6
 Product(s): libXfont
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23366
 
Oval ID: oval:org.mitre.oval:def:23366
Title: DEPRECATED: ELSA-2011:1154: libXfont security update (Important)
Description: The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.
Family: unix Class: patch
Reference(s): ELSA-2011:1154-01
CVE-2011-2895
 Version: 7
Platform(s): Oracle Linux 5
Oracle Linux 6
 Product(s): libXfont
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23404
 
Oval ID: oval:org.mitre.oval:def:23404
Title: ELSA-2011:1154: libXfont security update (Important)
Description: The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.
Family: unix Class: patch
Reference(s): ELSA-2011:1154-01
CVE-2011-2895
 Version: 6
Platform(s): Oracle Linux 5
Oracle Linux 6
 Product(s): libXfont
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28127
 
Oval ID: oval:org.mitre.oval:def:28127
Title: DEPRECATED: ELSA-2011-1154 -- libXfont security update (important)
Description: [1.4.1-2] - cve-2011-2895.patch: LZW decompression heap corruption
Family: unix Class: patch
Reference(s): ELSA-2011-1154
CVE-2011-2895
 Version: 4
Platform(s): Oracle Linux 5
Oracle Linux 6
 Product(s): libXfont
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 21
Os 1
Os 1
Os 21

OpenVAS Exploits

Date Description
2012-07-30 Name : CentOS Update for freetype CESA-2011:1161 centos4 x86_64
File : nvt/gb_CESA-2011_1161_freetype_centos4_x86_64.nasl
2012-07-30 Name : CentOS Update for xorg-x11 CESA-2011:1155 centos4 x86_64
File : nvt/gb_CESA-2011_1155_xorg-x11_centos4_x86_64.nasl
2012-07-30 Name : CentOS Update for libXfont CESA-2011:1154 centos5 x86_64
File : nvt/gb_CESA-2011_1154_libXfont_centos5_x86_64.nasl
2012-05-18 Name : Mac OS X Multiple Vulnerabilities (2012-002)
File : nvt/gb_macosx_su12-002.nasl
2012-02-12 Name : FreeBSD Ports: FreeBSD
File : nvt/freebsd_FreeBSD14.nasl
2012-02-06 Name : Mac OS X Multiple Vulnerabilities (2012-001)
File : nvt/gb_macosx_su12-001.nasl
2011-11-08 Name : Mandriva Update for gimp MDVSA-2011:167 (gimp)
File : nvt/gb_mandriva_MDVSA_2011_167.nasl
2011-10-21 Name : Mandriva Update for libxfont MDVSA-2011:153 (libxfont)
File : nvt/gb_mandriva_MDVSA_2011_153.nasl
2011-10-16 Name : FreeBSD Security Advisory (FreeBSD-SA-11:04.compress.asc)
File : nvt/freebsdsa_compress.nasl
2011-10-14 Name : Mandriva Update for cups MDVSA-2011:146 (cups)
File : nvt/gb_mandriva_MDVSA_2011_146.nasl
2011-09-23 Name : CentOS Update for libXfont CESA-2011:1154 centos5 i386
File : nvt/gb_CESA-2011_1154_libXfont_centos5_i386.nasl
2011-09-21 Name : FreeBSD Ports: libXfont
File : nvt/freebsd_libXfont.nasl
2011-09-21 Name : Debian Security Advisory DSA 2293-1 (libxfont)
File : nvt/deb_2293_1.nasl
2011-08-19 Name : CentOS Update for freetype CESA-2011:1161 centos4 i386
File : nvt/gb_CESA-2011_1161_freetype_centos4_i386.nasl
2011-08-18 Name : CentOS Update for xorg-x11 CESA-2011:1155 centos4 i386
File : nvt/gb_CESA-2011_1155_xorg-x11_centos4_i386.nasl
2011-08-18 Name : RedHat Update for freetype RHSA-2011:1161-01
File : nvt/gb_RHSA-2011_1161-01_freetype.nasl
2011-08-18 Name : Ubuntu Update for libxfont USN-1191-1
File : nvt/gb_ubuntu_USN_1191_1.nasl
2011-08-12 Name : RedHat Update for libXfont RHSA-2011:1154-01
File : nvt/gb_RHSA-2011_1154-01_libXfont.nasl
2011-08-12 Name : RedHat Update for xorg-x11 RHSA-2011:1155-01
File : nvt/gb_RHSA-2011_1155-01_xorg-x11.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
74927 X.Org libXfont src/fontfile/decompress.c BufCompressedFill() Function LZW Dec...

Nessus® Vulnerability Scanner

Date Description
2016-10-13 Name : The remote device is affected by multiple vulnerabilities.
File : appletv_9_1.nasl - Type : ACT_GATHER_INFO
2015-12-11 Name : The remote host is missing a Mac OS X update that fixes multiple security vul...
File : macosx_SecUpd2015-008.nasl - Type : ACT_GATHER_INFO
2015-12-10 Name : The remote host is missing a Mac OS X update that fixes multiple security vul...
File : macosx_10_11_2.nasl - Type : ACT_GATHER_INFO
2015-03-27 Name : The remote Fedora host is missing a security update.
File : fedora_2015-3948.nasl - Type : ACT_GATHER_INFO
2015-03-27 Name : The remote Fedora host is missing a security update.
File : fedora_2015-3964.nasl - Type : ACT_GATHER_INFO
2015-03-23 Name : The remote Fedora host is missing a security update.
File : fedora_2015-3953.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_libpciaccess0-110905.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_libpciaccess0-110905.nasl - Type : ACT_GATHER_INFO
2014-02-23 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201402-23.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1154.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1155.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1161.nasl - Type : ACT_GATHER_INFO
2013-01-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1834.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110815_freetype_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110811_xorg_x11_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110811_libXfont_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-05-10 Name : The remote host is missing a Mac OS X update that fixes several security issues.
File : macosx_10_7_4.nasl - Type : ACT_GATHER_INFO
2012-02-02 Name : The remote host is missing a Mac OS X update that fixes multiple security vul...
File : macosx_SecUpd2012-001.nasl - Type : ACT_GATHER_INFO
2012-02-02 Name : The remote host is missing a Mac OS X update that fixes several security vuln...
File : macosx_10_7_3.nasl - Type : ACT_GATHER_INFO
2012-01-31 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_fee94342463811e19f4700e0815b8da8.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_libpciaccess0-110905.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_freetype2-7872.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_xorg-x11-7759.nasl - Type : ACT_GATHER_INFO
2011-11-07 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-167.nasl - Type : ACT_GATHER_INFO
2011-10-18 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-153.nasl - Type : ACT_GATHER_INFO
2011-10-11 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-146.nasl - Type : ACT_GATHER_INFO
2011-09-23 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-1154.nasl - Type : ACT_GATHER_INFO
2011-08-17 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-1161.nasl - Type : ACT_GATHER_INFO
2011-08-16 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1161.nasl - Type : ACT_GATHER_INFO
2011-08-16 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1191-1.nasl - Type : ACT_GATHER_INFO
2011-08-15 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2293.nasl - Type : ACT_GATHER_INFO
2011-08-15 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-1155.nasl - Type : ACT_GATHER_INFO
2011-08-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1155.nasl - Type : ACT_GATHER_INFO
2011-08-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1154.nasl - Type : ACT_GATHER_INFO
2011-08-12 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_304409c3c3ef11e08aa5485d60cb5385.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d11ee5886e9d9ec61005...
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.asc
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html
http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html
http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
http://lists.freedesktop.org/archives/xorg-announce/2011-August/001721.html
http://lists.freedesktop.org/archives/xorg-announce/2011-August/001722.html
http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00004.html
http://secunia.com/advisories/45544
http://secunia.com/advisories/45568
http://secunia.com/advisories/45599
http://secunia.com/advisories/45986
http://secunia.com/advisories/46127
http://secunia.com/advisories/48951
http://securitytracker.com/id?1025920
http://support.apple.com/kb/HT5130
http://support.apple.com/kb/HT5281
http://www.debian.org/security/2011/dsa-2293
http://www.mandriva.com/security/advisories?name=MDVSA-2011:153
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/compress/zopen.c#rev1.17
http://www.openwall.com/lists/oss-security/2011/08/10/10
http://www.redhat.com/support/errata/RHSA-2011-1154.html
http://www.redhat.com/support/errata/RHSA-2011-1155.html
http://www.redhat.com/support/errata/RHSA-2011-1161.html
http://www.redhat.com/support/errata/RHSA-2011-1834.html
http://www.securityfocus.com/bid/49124
http://www.ubuntu.com/usn/USN-1191-1
https://bugzilla.redhat.com/show_bug.cgi?id=725760
https://bugzilla.redhat.com/show_bug.cgi?id=727624
https://exchange.xforce.ibmcloud.com/vulnerabilities/69141
https://support.apple.com/HT205635
https://support.apple.com/HT205637
https://support.apple.com/HT205640
https://support.apple.com/HT205641
Source Url

Alert History

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Date Informations
2024-11-28 23:04:23
  • Multiple Updates
2024-11-28 12:26:31
  • Multiple Updates
2021-05-05 01:08:35
  • Multiple Updates
2021-05-04 12:14:51
  • Multiple Updates
2021-04-22 01:16:11
  • Multiple Updates
2020-05-23 01:45:31
  • Multiple Updates
2020-05-23 00:29:50
  • Multiple Updates
2019-03-23 12:02:39
  • Multiple Updates
2017-08-29 09:23:26
  • Multiple Updates
2016-10-14 13:25:02
  • Multiple Updates
2016-04-26 20:56:16
  • Multiple Updates
2015-12-12 13:26:14
  • Multiple Updates
2015-12-12 09:24:04
  • Multiple Updates
2015-12-11 13:25:48
  • Multiple Updates
2015-03-28 13:27:08
  • Multiple Updates
2015-03-25 13:28:15
  • Multiple Updates
2014-06-14 13:31:10
  • Multiple Updates
2014-02-23 13:21:04
  • Multiple Updates
2014-02-17 11:04:05
  • Multiple Updates
2013-05-10 23:04:36
  • Multiple Updates
2012-12-19 13:23:53
  • Multiple Updates