7.6
HIGH
CVE-2011-0020
Apache Pango Heap-Based Buffer Overflow Vulnerability
Description

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.

INFO

Published Date :

Jan. 24, 2011, 6 p.m.

Last Modified :

Nov. 21, 2024, 1:23 a.m.

Remotely Exploitable :

Yes !

Impact Score :

10.0

Exploitability Score :

4.9
Affected Products

The following products are affected by CVE-2011-0020 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnome pango
1 Pango pango
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2011-0020.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://openwall.com/lists/oss-security/2011/01/18/6 Exploit
http://openwall.com/lists/oss-security/2011/01/20/2 Exploit
http://osvdb.org/70596
http://secunia.com/advisories/42934
http://secunia.com/advisories/43100
http://www.redhat.com/support/errata/RHSA-2011-0180.html
http://www.securityfocus.com/bid/45842
http://www.securitytracker.com/id?1024994
http://www.vupen.com/english/advisories/2011/0186 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0238
https://bugs.launchpad.net/ubuntu/+source/pango1.0/+bug/696616 Exploit
https://bugzilla.gnome.org/show_bug.cgi?id=639882
https://bugzilla.redhat.com/show_bug.cgi?id=671122 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/64832
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://openwall.com/lists/oss-security/2011/01/18/6 Exploit
http://openwall.com/lists/oss-security/2011/01/20/2 Exploit
http://osvdb.org/70596
http://secunia.com/advisories/42934
http://secunia.com/advisories/43100
http://www.redhat.com/support/errata/RHSA-2011-0180.html
http://www.securityfocus.com/bid/45842
http://www.securitytracker.com/id?1024994
http://www.vupen.com/english/advisories/2011/0186 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0238
https://bugs.launchpad.net/ubuntu/+source/pango1.0/+bug/696616 Exploit
https://bugzilla.gnome.org/show_bug.cgi?id=639882
https://bugzilla.redhat.com/show_bug.cgi?id=671122 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/64832

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2011-0020 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2011-0020 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
    Added Reference http://openwall.com/lists/oss-security/2011/01/18/6
    Added Reference http://openwall.com/lists/oss-security/2011/01/20/2
    Added Reference http://osvdb.org/70596
    Added Reference http://secunia.com/advisories/42934
    Added Reference http://secunia.com/advisories/43100
    Added Reference http://www.redhat.com/support/errata/RHSA-2011-0180.html
    Added Reference http://www.securityfocus.com/bid/45842
    Added Reference http://www.securitytracker.com/id?1024994
    Added Reference http://www.vupen.com/english/advisories/2011/0186
    Added Reference http://www.vupen.com/english/advisories/2011/0238
    Added Reference https://bugs.launchpad.net/ubuntu/+source/pango1.0/+bug/696616
    Added Reference https://bugzilla.gnome.org/show_bug.cgi?id=639882
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=671122
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/64832
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2023

    Action Type Old Value New Value
    Changed Description CVE-2011-0020 pango: Heap-based buffer overflow by rendering glyph box for certain FT_Bitmap objects 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.
    Removed CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Removed CVSS V2 Red Hat, Inc. (AV:N/AC:H/Au:N/C:P/I:P/A:P)
    Removed Reference https://access.redhat.com/errata/RHSA-2011:0180 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2011-0020 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description 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 pango: Heap-based buffer overflow by rendering glyph box for certain FT_Bitmap objects
    Added CVSS V2 Red Hat, Inc. (AV:N/AC:H/Au:N/C:P/I:P/A:P)
    Added Reference https://access.redhat.com/errata/RHSA-2011:0180 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2011-0020 [No Types Assigned]
  • CPE Deprecation Remap by [email protected]

    Jul. 14, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:pango:pango:1.28.1:*:*:*:*:*:*:* OR *cpe:2.3:a:gnome:pango:1.28.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 14, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:pango:pango:1.28.0:*:*:*:*:*:*:* OR *cpe:2.3:a:gnome:pango:1.28.0:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 14, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:pango:pango:1.28.2:*:*:*:*:*:*:* OR *cpe:2.3:a:gnome:pango:1.28.2:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 14, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:pango:pango:*:*:*:*:*:*:*:* versions from (including) 1.28.3 OR *cpe:2.3:a:gnome:pango:*:*:*:*:*:*:*:* versions from (including) 1.28.3
  • CVE Modified by [email protected]

    Aug. 17, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/64832 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/64832 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 25, 2011

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

10.99 }} 5.12%

score

0.92787

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability