Vulnerabilities > CVE-2011-0020 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Heap-based buffer overflow in the pango_ft2_font_render_box_glyph function in pango/pangoft2-render.c in libpango in Pango 1.28.3 and earlier, when the FreeType2 backend is enabled, allows user-assisted remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file, related to the glyph box for an FT_Bitmap object.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (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.
Exploit-Db
| description | Pango Font Parsing 'pangoft2-render.c' Heap Corruption Vulnerability. CVE-2011-0020. Remote exploit for linux platform |
| id | EDB-ID:35232 |
| last seen | 2016-02-04 |
| modified | 2011-01-18 |
| published | 2011-01-18 |
| reporter | Dan Rosenberg |
| source | https://www.exploit-db.com/download/35232/ |
| title | Pango Font Parsing 'pangoft2-render.c' Heap Corruption Vulnerability |
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_11_2_LIBPANGO-1_0-0-110301.NASL description Specially crafted font files could cause a heap corruption in applications linked against pango (CVE-2011-0064, CVE-2011-0020). last seen 2020-06-01 modified 2020-06-02 plugin id 53753 published 2011-05-05 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/53753 title openSUSE Security Update : libpango-1_0-0 (openSUSE-SU-2011:0221-1) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update libpango-1_0-0-4076. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(53753); script_version("1.6"); script_cvs_date("Date: 2019/10/25 13:36:40"); script_cve_id("CVE-2011-0020", "CVE-2011-0064"); script_name(english:"openSUSE Security Update : libpango-1_0-0 (openSUSE-SU-2011:0221-1)"); script_summary(english:"Check for the libpango-1_0-0-4076 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "Specially crafted font files could cause a heap corruption in applications linked against pango (CVE-2011-0064, CVE-2011-0020)." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=666101" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=672502" ); script_set_attribute( attribute:"see_also", value:"https://lists.opensuse.org/opensuse-updates/2011-03/msg00019.html" ); script_set_attribute( attribute:"solution", value:"Update the affected libpango-1_0-0 packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pango"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pango-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pango-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pango-module-thai-lang"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.2"); script_set_attribute(attribute:"patch_publication_date", value:"2011/03/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2011/05/05"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE11\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE11.2", reference:"pango-1.26.2-1.3.1") ) flag++; if ( rpm_check(release:"SUSE11.2", reference:"pango-devel-1.26.2-1.3.1") ) flag++; if ( rpm_check(release:"SUSE11.2", reference:"pango-module-thai-lang-1.26.2-1.3.1") ) flag++; if ( rpm_check(release:"SUSE11.2", cpu:"x86_64", reference:"pango-32bit-1.26.2-1.3.1") ) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "pango / pango-32bit / pango-devel / pango-module-thai-lang"); }NASL family SuSE Local Security Checks NASL id SUSE_FIREFOX3-PANGO-7459.NASL description The following bug has been fixed : - Specially crafted font files could cause a heap corruption in applications linked against pango. (CVE-2011-0020) last seen 2020-06-01 modified 2020-06-02 plugin id 57187 published 2011-12-13 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57187 title SuSE 10 Security Update : firefox3-pango (ZYPP Patch Number 7459) NASL family SuSE Local Security Checks NASL id SUSE_11_PANGO-110301.NASL description Specially crafted font files could cause a heap corruption in applications linked against pango. (CVE-2011-0064 / CVE-2011-0020) last seen 2020-06-01 modified 2020-06-02 plugin id 52960 published 2011-03-24 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/52960 title SuSE 11.1 Security Update : pango (SAT Patch Number 4065) NASL family SuSE Local Security Checks NASL id SUSE_FIREFOX3-PANGO-7460.NASL description The following bug has been fixed : - Specially crafted font files could cause a heap corruption in applications linked against pango. (CVE-2011-0020) last seen 2020-06-01 modified 2020-06-02 plugin id 54612 published 2011-05-23 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/54612 title SuSE 10 Security Update : firefox3-pango (ZYPP Patch Number 7460) NASL family SuSE Local Security Checks NASL id SUSE_11_3_LIBPANGO-1_0-0-110301.NASL description Specially crafted font files could cause a heap corruption in applications linked against pango (CVE-2011-0064, CVE-2011-0020). last seen 2020-06-01 modified 2020-06-02 plugin id 75599 published 2014-06-13 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/75599 title openSUSE Security Update : libpango-1_0-0 (openSUSE-SU-2011:0221-1) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2011-020.NASL description A vulnerability has been found and corrected in pango : Heap-based buffer overflow in the pango_ft2_font_render_box_glyph function in pango/pangoft2-render.c in libpango in Pango 1.28.3 and earlier, when the FreeType2 backend is enabled, allows user-assisted remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file, related to the glyph box for an FT_Bitmap object (CVE-2011-0020). Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more: http://store.mandriva.com/product_info.php?cPath=149 products_id=490 The updated packages have been patched to correct this issue. last seen 2020-06-01 modified 2020-06-02 plugin id 51865 published 2011-02-04 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/51865 title Mandriva Linux Security Advisory : pango (MDVSA-2011:020) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2011-0180.NASL description Updated pango and evolution28-pango packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. 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. Pango is a library used for the layout and rendering of internationalized text. An input sanitization flaw, leading to a heap-based buffer overflow, was found in the way Pango displayed font files when using the FreeType font engine back end. If a user loaded a malformed font file with an application that uses Pango, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0020) Users of pango and evolution28-pango are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing the updated packages, you must restart your system or restart your X session for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 51886 published 2011-02-06 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51886 title CentOS 4 : pango (CESA-2011:0180) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2011-0180.NASL description Updated pango and evolution28-pango packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. 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. Pango is a library used for the layout and rendering of internationalized text. An input sanitization flaw, leading to a heap-based buffer overflow, was found in the way Pango displayed font files when using the FreeType font engine back end. If a user loaded a malformed font file with an application that uses Pango, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0020) Users of pango and evolution28-pango are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing the updated packages, you must restart your system or restart your X session for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 51811 published 2011-01-28 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51811 title RHEL 4 / 5 / 6 : pango (RHSA-2011:0180) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2011-0180.NASL description From Red Hat Security Advisory 2011:0180 : Updated pango and evolution28-pango packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. 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. Pango is a library used for the layout and rendering of internationalized text. An input sanitization flaw, leading to a heap-based buffer overflow, was found in the way Pango displayed font files when using the FreeType font engine back end. If a user loaded a malformed font file with an application that uses Pango, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0020) Users of pango and evolution28-pango are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing the updated packages, you must restart your system or restart your X session for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 68188 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68188 title Oracle Linux 4 / 5 / 6 : pango (ELSA-2011-0180) NASL family Scientific Linux Local Security Checks NASL id SL_20110127_PANGO_ON_SL4_X.NASL description An input sanitization flaw, leading to a heap-based buffer overflow, was found in the way Pango displayed font files when using the FreeType font engine back end. If a user loaded a malformed font file with an application that uses Pango, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0020) After installing the updated packages, you must restart your system or restart your X session for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 60944 published 2012-08-01 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60944 title Scientific Linux Security Update : pango on SL4.x, SL5.x i386/x86_64 NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201405-13.NASL description The remote host is affected by the vulnerability described in GLSA-201405-13 (Pango: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Pango. Please review the CVE identifiers referenced below for details. Impact : A context-dependent attacker could entice a user to load specially crafted text using an application linked against Pango, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 74056 published 2014-05-19 reporter This script is Copyright (C) 2014-2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/74056 title GLSA-201405-13 : Pango: Multiple vulnerabilities NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-1082-1.NASL description Marc Schoenefeld discovered that Pango incorrectly handled certain Glyph Definition (GDEF) tables. If a user were tricked into displaying text with a specially crafted font, an attacker could cause Pango to crash, resulting in a denial of service. This issue only affected Ubuntu 8.04 LTS and 9.10. (CVE-2010-0421) Dan Rosenberg discovered that Pango incorrectly handled certain FT_Bitmap objects. If a user were tricked into displaying text with a specially- crafted font, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program. The default compiler options for affected releases should reduce the vulnerability to a denial of service. (CVE-2011-0020) It was discovered that Pango incorrectly handled certain memory reallocation failures. If a user were tricked into displaying text in a way that would cause a reallocation failure, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program. This issue only affected Ubuntu 9.10, 10.04 LTS and 10.10. (CVE-2011-0064). 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 2020-06-01 modified 2020-06-02 plugin id 52529 published 2011-03-03 reporter Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/52529 title Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : pango1.0 vulnerabilities (USN-1082-1)
Redhat
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References
- http://www.vupen.com/english/advisories/2011/0186
- https://bugzilla.redhat.com/show_bug.cgi?id=671122
- https://bugs.launchpad.net/ubuntu/+source/pango1.0/+bug/696616
- http://openwall.com/lists/oss-security/2011/01/18/6
- http://openwall.com/lists/oss-security/2011/01/20/2
- http://www.securityfocus.com/bid/45842
- http://osvdb.org/70596
- http://www.redhat.com/support/errata/RHSA-2011-0180.html
- http://www.securitytracker.com/id?1024994
- http://secunia.com/advisories/43100
- http://www.vupen.com/english/advisories/2011/0238
- http://secunia.com/advisories/42934
- https://bugzilla.gnome.org/show_bug.cgi?id=639882
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64832