Executive Summary
Summary | |
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Title | xorg-x11 security update |
Informations | |||
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Name | RHSA-2011:1155 | First vendor Publication | 2011-08-11 |
Vendor | RedHat | Last vendor Modification | 2011-08-11 |
Severity (Vendor) | Important | Revision | 01 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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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) | |||
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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
Problem Description: Updated xorg-x11 packages that fix one security issue are now available for Red Hat Enterprise Linux 4. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 3. Description: X.Org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. These xorg-x11 packages also provide the X.Org libXfont runtime library. A buffer overflow flaw was found in the way the libXfont library, used by the X.Org server, handled malformed font files compressed using UNIX compress. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server. (CVE-2011-2895) Users of xorg-x11 should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for the update to take effect. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 725760 - CVE-2011-2895 libXfont: LZW decompression heap corruption / infinite loop 727624 - CVE-2011-2895 BSD compress LZW decoder buffer overflow |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2011-1155.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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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: | |||
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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: | |||
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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: | |||
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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: | |||
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CPE : Common Platform Enumeration
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 |
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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 |
Alert History
Date | Informations |
---|---|
2014-02-17 11:54:59 |
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