ID CVE-2011-2895
Summary 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.
References
Vulnerable Configurations
  • OpenBSD 3.6
    cpe:2.3:o:openbsd:openbsd:3.6
  • OpenBSD 3.5
    cpe:2.3:o:openbsd:openbsd:3.5
  • OpenBSD 3.4
    cpe:2.3:o:openbsd:openbsd:3.4
  • OpenBSD 3.3
    cpe:2.3:o:openbsd:openbsd:3.3
  • OpenBSD 3.2
    cpe:2.3:o:openbsd:openbsd:3.2
  • OpenBSD 3.1
    cpe:2.3:o:openbsd:openbsd:3.1
  • OpenBSD 3.0
    cpe:2.3:o:openbsd:openbsd:3.0
  • OpenBSD 2.9
    cpe:2.3:o:openbsd:openbsd:2.9
  • OpenBSD 2.8
    cpe:2.3:o:openbsd:openbsd:2.8
  • OpenBSD 2.7
    cpe:2.3:o:openbsd:openbsd:2.7
  • OpenBSD 2.6
    cpe:2.3:o:openbsd:openbsd:2.6
  • OpenBSD 2.0
    cpe:2.3:o:openbsd:openbsd:2.0
  • OpenBSD 2.1
    cpe:2.3:o:openbsd:openbsd:2.1
  • OpenBSD 2.2
    cpe:2.3:o:openbsd:openbsd:2.2
  • OpenBSD 2.3
    cpe:2.3:o:openbsd:openbsd:2.3
  • OpenBSD 2.4
    cpe:2.3:o:openbsd:openbsd:2.4
  • OpenBSD 2.5
    cpe:2.3:o:openbsd:openbsd:2.5
  • OpenBSD 3.7
    cpe:2.3:o:openbsd:openbsd:3.7
  • FreeBSD
    cpe:2.3:o:freebsd:freebsd
  • NetBSD
    cpe:2.3:o:netbsd:netbsd
  • FreeType 2.1.9
    cpe:2.3:a:freetype:freetype:2.1.9
  • X.Org LibXFont 1.4.3
    cpe:2.3:a:x:libxfont:1.4.3
  • X.Org LibXFont 1.2.0
    cpe:2.3:a:x:libxfont:1.2.0
  • X.Org LibXFont 1.2.1
    cpe:2.3:a:x:libxfont:1.2.1
  • X.Org LibXFont 1.2.2
    cpe:2.3:a:x:libxfont:1.2.2
  • X.Org LibXFont 1.2.3
    cpe:2.3:a:x:libxfont:1.2.3
  • X.Org LibXFont 1.2.4
    cpe:2.3:a:x:libxfont:1.2.4
  • X.Org LibXFont 1.2.5
    cpe:2.3:a:x:libxfont:1.2.5
  • X.Org LibXFont 1.2.6
    cpe:2.3:a:x:libxfont:1.2.6
  • X.Org LibXFont 1.2.7
    cpe:2.3:a:x:libxfont:1.2.7
  • X.Org LibXFont 1.2.8
    cpe:2.3:a:x:libxfont:1.2.8
  • X.Org LibXFont 1.2.9
    cpe:2.3:a:x:libxfont:1.2.9
  • X.Org LibXFont 1.3.0
    cpe:2.3:a:x:libxfont:1.3.0
  • X.Org LibXFont 1.3.1
    cpe:2.3:a:x:libxfont:1.3.1
  • X.Org LibXFont 1.3.2
    cpe:2.3:a:x:libxfont:1.3.2
  • X.Org LibXFont 1.3.3
    cpe:2.3:a:x:libxfont:1.3.3
  • X.Org LibXFont 1.3.4
    cpe:2.3:a:x:libxfont:1.3.4
  • X.Org LibXFont 1.4.0
    cpe:2.3:a:x:libxfont:1.4.0
  • X.Org LibXFont 1.4.1
    cpe:2.3:a:x:libxfont:1.4.1
  • X.Org LibXFont 1.4.2
    cpe:2.3:a:x:libxfont:1.4.2
CVSS
Base: 9.3 (as of 28-06-2016 - 13:02)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
nessus via4
  • NASL family SuSE Local Security Checks
    NASL id SUSE_FREETYPE2-7872.NASL
    description This update of freetype2 fixes multiple security flaws that could allow attackers to cause a denial of service or to execute arbitrary code via specially crafted fonts. (CVE-2011-3256 / CVE-2011-3439 / CVE-2011-2895)
    last seen 2019-02-21
    modified 2012-05-17
    plugin id 57198
    published 2011-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57198
    title SuSE 10 Security Update : freetype2 (ZYPP Patch Number 7872)
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_SECUPD2015-008.NASL
    description The remote host is running a version of Mac OS X 10.9.5 or 10.10.5 that is missing Security Update 2015-005 or 2015-008. It is, therefore, affected by multiple vulnerabilities in the following components : - apache_mod_php - AppSandbox - Bluetooth - CFNetwork HTTPProtocol - Compression - Configuration Profiles - CoreGraphics - CoreMedia Playback - Disk Images - EFI - File Bookmark - Hypervisor - iBooks - ImageIO - Intel Graphics Driver - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - IOThunderboltFamily - Kernel - kext tools - Keychain Access - libarchive - libc - libexpat - libxml2 - OpenGL - OpenLDAP - OpenSSH - QuickLook - Sandbox - Security - System Integrity Protection Note that successful exploitation of the most serious issues can result in arbitrary code execution.
    last seen 2019-02-21
    modified 2018-07-14
    plugin id 87321
    published 2015-12-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87321
    title Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2011-1154.NASL
    description From Red Hat Security Advisory 2011:1154 : Updated libXfont packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. 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. The libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System. 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 libXfont 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.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 68322
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68322
    title Oracle Linux 5 / 6 : libXfont (ELSA-2011-1154)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_LIBPCIACCESS0-110905.NASL
    description Specially crafted font files could cause a buffer overflow in applications that use libXfont to load such files. (CVE-2011-2895)
    last seen 2019-02-21
    modified 2013-10-25
    plugin id 57117
    published 2011-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57117
    title SuSE 11.1 Security Update : Xorg X11 (SAT Patch Number 5103)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-1161.NASL
    description Updated freetype 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 moderate 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. FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. These packages provide both the FreeType 1 and FreeType 2 font engines. A buffer overflow flaw was found in the way the FreeType library handled malformed font files compressed using UNIX compress. If a user loaded a specially crafted compressed font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-2895) Note: This issue only affects the FreeType 2 font engine. Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The X server must be restarted (log out, then log back in) for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 55856
    published 2011-08-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55856
    title RHEL 4 : freetype (RHSA-2011:1161)
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2011-153.NASL
    description A vulnerability has been discovered and corrected in libxfont : 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, 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 (CVE-2011-2895). The updated packages have been patched to correct this issue.
    last seen 2019-02-21
    modified 2018-07-19
    plugin id 56531
    published 2011-10-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56531
    title Mandriva Linux Security Advisory : libxfont (MDVSA-2011:153)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201402-23.NASL
    description The remote host is affected by the vulnerability described in GLSA-201402-23 (libXfont: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in libXfont. Please review the CVE identifiers referenced below for details. Impact : A local attacker could use a specially crafted file to gain privileges or cause a Denial of Service condition. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-07-12
    plugin id 72637
    published 2014-02-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72637
    title GLSA-201402-23 : libXfont: Multiple vulnerabilities
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_SECUPD2012-001.NASL
    description The remote host is running a version of Mac OS X 10.6 that does not have Security Update 2012-001 applied. This update contains multiple security-related fixes for the following components : - Apache - ATS - ColorSync - CoreAudio - CoreMedia - CoreText - curl - Data Security - dovecot - filecmds - libresolv - libsecurity - OpenGL - PHP - QuickTime - SquirrelMail - Subversion - Tomcat - X11
    last seen 2019-02-21
    modified 2018-07-14
    plugin id 57798
    published 2012-02-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57798
    title Mac OS X Multiple Vulnerabilities (Security Update 2012-001) (BEAST)
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_10_7_3.NASL
    description The remote host is running a version of Mac OS X 10.7.x that is prior to 10.7.3. The newer version contains multiple security-related fixes for the following components : - Address Book - Apache - ATS - CFNetwork - CoreMedia - CoreText - CoreUI - curl - Data Security - dovecot - filecmds - ImageIO - Internet Sharing - Libinfo - libresolv - libsecurity - OpenGL - PHP - QuickTime - Subversion - Time Machine - WebDAV Sharing - Webmail - X11
    last seen 2019-02-21
    modified 2018-07-14
    plugin id 57797
    published 2012-02-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57797
    title Mac OS X 10.7.x < 10.7.3 Multiple Vulnerabilities (BEAST)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2011-1161.NASL
    description Updated freetype 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 moderate 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. FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. These packages provide both the FreeType 1 and FreeType 2 font engines. A buffer overflow flaw was found in the way the FreeType library handled malformed font files compressed using UNIX compress. If a user loaded a specially crafted compressed font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-2895) Note: This issue only affects the FreeType 2 font engine. Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The X server must be restarted (log out, then log back in) for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 55861
    published 2011-08-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55861
    title CentOS 4 : freetype (CESA-2011:1161)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2011-1155.NASL
    description From Red Hat Security Advisory 2011:1155 : 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. 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.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 68323
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68323
    title Oracle Linux 4 : xorg-x11 (ELSA-2011-1155)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-2293.NASL
    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.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 55841
    published 2011-08-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55841
    title Debian DSA-2293-1 : libxfont - buffer overflow
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20110815_FREETYPE_ON_SL4_X.NASL
    description FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. These packages provide both the FreeType 1 and FreeType 2 font engines. A buffer overflow flaw was found in the way the FreeType library handled malformed font files compressed using UNIX compress. If a user loaded a specially crafted compressed font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-2895) Note: This issue only affects the FreeType 2 font engine. Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The X server must be restarted (log out, then log back in) for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61111
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61111
    title Scientific Linux Security Update : freetype on SL4.x i386/x86_64
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20110811_XORG_X11_ON_SL4_X.NASL
    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.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61109
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61109
    title Scientific Linux Security Update : xorg-x11 on SL4.x i386/x86_64
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_10_11_2.NASL
    description The remote host is running a version of Mac OS X that is 10.11.x prior to 10.11.2. It is, therefore, affected by multiple vulnerabilities in the following components : - apache_mod_php - AppSandbox - Bluetooth - CFNetwork HTTPProtocol - Compression - Configuration Profiles - CoreGraphics - CoreMedia Playback - Disk Images - EFI - File Bookmark - Hypervisor - iBooks - ImageIO - Intel Graphics Driver - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - IOThunderboltFamily - Kernel - kext tools - Keychain Access - libarchive - libc - libexpat - libxml2 - OpenGL - OpenLDAP - OpenSSH - QuickLook - Sandbox - Security - System Integrity Protection Note that successful exploitation of the most serious issues can result in arbitrary code execution.
    last seen 2019-02-21
    modified 2018-07-14
    plugin id 87314
    published 2015-12-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87314
    title Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20110811_LIBXFONT_ON_SL5_X.NASL
    description The libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System. 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 libXfont 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.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61108
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61108
    title Scientific Linux Security Update : libXfont on SL5.x, SL6.x i386/x86_64
  • NASL family SuSE Local Security Checks
    NASL id SUSE_XORG-X11-7759.NASL
    description The following bug has been fixed : - Specially crafted font files could have caused a buffer overflow in applications that use libXfont to load such files. (CVE-2011-2895)
    last seen 2019-02-21
    modified 2012-05-17
    plugin id 57269
    published 2011-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57269
    title SuSE 10 Security Update : Xorg-X11 (ZYPP Patch Number 7759)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_3_LIBPCIACCESS0-110905.NASL
    description Specially crafted font files could cause a buffer overflow in applications that use libXfont to load such files (CVE-2011-2895).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 75600
    published 2014-06-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=75600
    title openSUSE Security Update : libpciaccess0 (openSUSE-SU-2011:1299-1)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_FEE94342463811E19F4700E0815B8DA8.NASL
    description The code used to decompress a file created by compress(1) does not do sufficient boundary checks on compressed code words, allowing reference beyond the decompression table, which may result in a stack overflow or an infinite loop when the decompressor encounters a corrupted file.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 57743
    published 2012-01-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57743
    title FreeBSD : FreeBSD -- errors handling corrupt compress file in compress(1) and gzip(1) (fee94342-4638-11e1-9f47-00e0815b8da8)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2011-1155.NASL
    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. 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.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 55840
    published 2011-08-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55840
    title CentOS 4 : xorg-x11 (CESA-2011:1155)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2011-1161.NASL
    description From Red Hat Security Advisory 2011:1161 : Updated freetype 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 moderate 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. FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. These packages provide both the FreeType 1 and FreeType 2 font engines. A buffer overflow flaw was found in the way the FreeType library handled malformed font files compressed using UNIX compress. If a user loaded a specially crafted compressed font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-2895) Note: This issue only affects the FreeType 2 font engine. Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The X server must be restarted (log out, then log back in) for this update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 68325
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68325
    title Oracle Linux 4 : freetype (ELSA-2011-1161)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-1155.NASL
    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. 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.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 55825
    published 2011-08-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55825
    title RHEL 4 : xorg-x11 (RHSA-2011:1155)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-1154.NASL
    description Updated libXfont packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. 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. The libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System. 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 libXfont 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.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 55824
    published 2011-08-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55824
    title RHEL 5 / 6 : libXfont (RHSA-2011:1154)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-1834.NASL
    description Updated libXfont packages that fix one security issue are now available for Red Hat Enterprise Linux 5.6 Extended Update Support. 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. The libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System. 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 libXfont 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.
    last seen 2019-02-21
    modified 2018-07-25
    plugin id 64016
    published 2013-01-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=64016
    title RHEL 5 : libXfont (RHSA-2011:1834)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-1191-1.NASL
    description Tomas Hoger discovered that libXfont incorrectly handled certain malformed compressed fonts. An attacker could use a specially crafted font file to cause libXfont to crash, or possibly execute arbitrary code in order to gain privileges. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 55858
    published 2011-08-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55858
    title Ubuntu 10.04 LTS / 10.10 / 11.04 : libxfont vulnerability (USN-1191-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_4_LIBPCIACCESS0-110905.NASL
    description Specially crafted font files could cause a buffer overflow in applications that use libXfont to load such files (CVE-2011-2895).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 75910
    published 2014-06-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=75910
    title openSUSE Security Update : libpciaccess0 (openSUSE-SU-2011:1299-1)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_304409C3C3EF11E08AA5485D60CB5385.NASL
    description Tomas Hoger reports : The compress/ LZW decompress implentation does not correctly handle compressed streams that contain code words that were not yet added to the decompression table. This may lead to arbitrary memory corruption. Successfull exploitation may possible lead to a local privilege escalation.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 55821
    published 2011-08-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55821
    title FreeBSD : libXfont -- possible local privilege escalation (304409c3-c3ef-11e0-8aa5-485d60cb5385)
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_10_7_4.NASL
    description The remote host is running a version of Mac OS X 10.7.x that is prior to 10.7.4. The newer version contains numerous security-related fixes for the following components : - Login Window - Bluetooth - curl - HFS - Kernel - libarchive - libsecurity - libxml - LoginUIFramework - PHP - Quartz Composer - QuickTime - Ruby - Security Framework - Time Machine - X11 Note that this update addresses the recent FileVault password vulnerability, in which user passwords are stored in plaintext to a system-wide debug log if the legacy version of FileVault is used to encrypt user directories after a system upgrade to Lion. Since the patch only limits further exposure, though, we recommend that all users on the system change their passwords if user folders were encrypted using the legacy version of FileVault prior to and after an upgrade to OS X 10.7.
    last seen 2019-02-21
    modified 2018-07-16
    plugin id 59066
    published 2012-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=59066
    title Mac OS X 10.7.x < 10.7.4 Multiple Vulnerabilities (BEAST)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2011-1154.NASL
    description Updated libXfont packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. 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. The libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System. 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 libXfont 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.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 56270
    published 2011-09-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56270
    title CentOS 5 : libXfont (CESA-2011:1154)
  • NASL family Misc.
    NASL id APPLETV_9_1.NASL
    description According to its banner, the version of the remote Apple TV device is prior to 9.1. It is, therefore, affected by multiple vulnerabilities in the following components : - AppleMobileFileIntegrity - Compression - CoreGraphics - CoreMedia Playback - Disk Images - dyld - ImageIO - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - Kernel - libarchive - libc - libxml2 - MobileStorageMounter - OpenGL - Security - WebKit Note that only 4th generation models are affected by the vulnerabilities.
    last seen 2019-02-21
    modified 2018-12-14
    plugin id 94050
    published 2016-10-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94050
    title Apple TV < 9.1 Multiple Vulnerabilities
redhat via4
advisories
  • bugzilla
    id 727624
    title CVE-2011-2895 BSD compress LZW decoder buffer overflow
    oval
    OR
    • AND
      • OR
        • comment Red Hat Enterprise Linux 6 Client is installed
          oval oval:com.redhat.rhsa:tst:20100842001
        • comment Red Hat Enterprise Linux 6 Server is installed
          oval oval:com.redhat.rhsa:tst:20100842002
        • comment Red Hat Enterprise Linux 6 Workstation is installed
          oval oval:com.redhat.rhsa:tst:20100842003
        • comment Red Hat Enterprise Linux 6 ComputeNode is installed
          oval oval:com.redhat.rhsa:tst:20100842004
      • OR
        • AND
          • comment libXfont is earlier than 0:1.4.1-2.el6_1
            oval oval:com.redhat.rhsa:tst:20111154005
          • comment libXfont is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20111154006
        • AND
          • comment libXfont-devel is earlier than 0:1.4.1-2.el6_1
            oval oval:com.redhat.rhsa:tst:20111154007
          • comment libXfont-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20111154008
    • AND
      • comment Red Hat Enterprise Linux 5 is installed
        oval oval:com.redhat.rhsa:tst:20070055001
      • OR
        • AND
          • comment libXfont is earlier than 0:1.2.2-1.0.4.el5_7
            oval oval:com.redhat.rhsa:tst:20111154010
          • comment libXfont is signed with Red Hat redhatrelease key
            oval oval:com.redhat.rhsa:tst:20070132003
        • AND
          • comment libXfont-devel is earlier than 0:1.2.2-1.0.4.el5_7
            oval oval:com.redhat.rhsa:tst:20111154012
          • comment libXfont-devel is signed with Red Hat redhatrelease key
            oval oval:com.redhat.rhsa:tst:20070132005
    rhsa
    id RHSA-2011:1154
    released 2011-08-11
    severity Important
    title RHSA-2011:1154: libXfont security update (Important)
  • bugzilla
    id 727624
    title CVE-2011-2895 BSD compress LZW decoder buffer overflow
    oval
    AND
    • comment Red Hat Enterprise Linux 4 is installed
      oval oval:com.redhat.rhsa:tst:20060016001
    • OR
      • AND
        • comment xorg-x11 is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155002
        • comment xorg-x11 is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003003
      • AND
        • comment xorg-x11-Mesa-libGL is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155028
        • comment xorg-x11-Mesa-libGL is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003021
      • AND
        • comment xorg-x11-Mesa-libGLU is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155032
        • comment xorg-x11-Mesa-libGLU is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003019
      • AND
        • comment xorg-x11-Xdmx is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155006
        • comment xorg-x11-Xdmx is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003013
      • AND
        • comment xorg-x11-Xnest is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155020
        • comment xorg-x11-Xnest is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003037
      • AND
        • comment xorg-x11-Xvfb is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155018
        • comment xorg-x11-Xvfb is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003033
      • AND
        • comment xorg-x11-deprecated-libs is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155034
        • comment xorg-x11-deprecated-libs is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003029
      • AND
        • comment xorg-x11-deprecated-libs-devel is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155008
        • comment xorg-x11-deprecated-libs-devel is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003027
      • AND
        • comment xorg-x11-devel is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155030
        • comment xorg-x11-devel is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003011
      • AND
        • comment xorg-x11-doc is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155024
        • comment xorg-x11-doc is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003015
      • AND
        • comment xorg-x11-font-utils is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155022
        • comment xorg-x11-font-utils is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003025
      • AND
        • comment xorg-x11-libs is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155010
        • comment xorg-x11-libs is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003009
      • AND
        • comment xorg-x11-sdk is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155004
        • comment xorg-x11-sdk is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003007
      • AND
        • comment xorg-x11-tools is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155026
        • comment xorg-x11-tools is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003031
      • AND
        • comment xorg-x11-twm is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155014
        • comment xorg-x11-twm is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003035
      • AND
        • comment xorg-x11-xauth is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155036
        • comment xorg-x11-xauth is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003017
      • AND
        • comment xorg-x11-xdm is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155012
        • comment xorg-x11-xdm is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003023
      • AND
        • comment xorg-x11-xfs is earlier than 0:6.8.2-1.EL.69
          oval oval:com.redhat.rhsa:tst:20111155016
        • comment xorg-x11-xfs is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070003005
    rhsa
    id RHSA-2011:1155
    released 2011-08-11
    severity Important
    title RHSA-2011:1155: xorg-x11 security update (Important)
  • bugzilla
    id 727624
    title CVE-2011-2895 BSD compress LZW decoder buffer overflow
    oval
    AND
    • comment Red Hat Enterprise Linux 4 is installed
      oval oval:com.redhat.rhsa:tst:20060016001
    • OR
      • AND
        • comment freetype is earlier than 0:2.1.9-19.el4
          oval oval:com.redhat.rhsa:tst:20111161002
        • comment freetype is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070150003
      • AND
        • comment freetype-demos is earlier than 0:2.1.9-19.el4
          oval oval:com.redhat.rhsa:tst:20111161006
        • comment freetype-demos is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070150012
      • AND
        • comment freetype-devel is earlier than 0:2.1.9-19.el4
          oval oval:com.redhat.rhsa:tst:20111161008
        • comment freetype-devel is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070150005
      • AND
        • comment freetype-utils is earlier than 0:2.1.9-19.el4
          oval oval:com.redhat.rhsa:tst:20111161004
        • comment freetype-utils is signed with Red Hat master key
          oval oval:com.redhat.rhsa:tst:20070150010
    rhsa
    id RHSA-2011:1161
    released 2011-08-15
    severity Moderate
    title RHSA-2011:1161: freetype security update (Moderate)
  • rhsa
    id RHSA-2011:1834
rpms
  • libXfont-0:1.4.1-2.el6_1
  • libXfont-devel-0:1.4.1-2.el6_1
  • libXfont-0:1.2.2-1.0.4.el5_7
  • libXfont-devel-0:1.2.2-1.0.4.el5_7
  • xorg-x11-0:6.8.2-1.EL.69
  • xorg-x11-Mesa-libGL-0:6.8.2-1.EL.69
  • xorg-x11-Mesa-libGLU-0:6.8.2-1.EL.69
  • xorg-x11-Xdmx-0:6.8.2-1.EL.69
  • xorg-x11-Xnest-0:6.8.2-1.EL.69
  • xorg-x11-Xvfb-0:6.8.2-1.EL.69
  • xorg-x11-deprecated-libs-0:6.8.2-1.EL.69
  • xorg-x11-deprecated-libs-devel-0:6.8.2-1.EL.69
  • xorg-x11-devel-0:6.8.2-1.EL.69
  • xorg-x11-doc-0:6.8.2-1.EL.69
  • xorg-x11-font-utils-0:6.8.2-1.EL.69
  • xorg-x11-libs-0:6.8.2-1.EL.69
  • xorg-x11-sdk-0:6.8.2-1.EL.69
  • xorg-x11-tools-0:6.8.2-1.EL.69
  • xorg-x11-twm-0:6.8.2-1.EL.69
  • xorg-x11-xauth-0:6.8.2-1.EL.69
  • xorg-x11-xdm-0:6.8.2-1.EL.69
  • xorg-x11-xfs-0:6.8.2-1.EL.69
  • freetype-0:2.1.9-19.el4
  • freetype-demos-0:2.1.9-19.el4
  • freetype-devel-0:2.1.9-19.el4
  • freetype-utils-0:2.1.9-19.el4
refmap via4
apple
  • APPLE-SA-2012-02-01-1
  • APPLE-SA-2012-05-09-1
  • APPLE-SA-2015-12-08-1
  • APPLE-SA-2015-12-08-2
  • APPLE-SA-2015-12-08-3
  • APPLE-SA-2015-12-08-4
bid 49124
confirm
debian DSA-2293
mandriva MDVSA-2011:153
mlist
  • [oss-security] 20110810 LZW decompression issues
  • [xorg-announce] 20110810 X.Org security advisory: libXfont LZW decompression heap corruption
  • [xorg-announce] 20110810 [ANNOUNCE] libXfont 1.4.4
netbsd NetBSD-SA2011-007
sectrack 1025920
secunia
  • 45544
  • 45568
  • 45599
  • 45986
  • 46127
  • 48951
suse
  • SUSE-SU-2011:1035
  • openSUSE-SU-2011:1299
ubuntu USN-1191-1
xf xorg-lzw-bo(69141)
Last major update 11-12-2015 - 21:59
Published 19-08-2011 - 13:55
Last modified 28-08-2017 - 21:29
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