CVE-2011-0020

Severity: high (CVSS 7.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 18.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-01-24 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Gnome Pango: through 1.28.3; 1.28.0, 1.28.1, 1.28.2
Pango: 0.20, 0.21, 0.22, 0.23, 0.24, 0.25 (+29)

References

http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://openwall.com/lists/oss-security/2011/01/18/6
http://openwall.com/lists/oss-security/2011/01/20/2
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
http://www.vupen.com/english/advisories/2011/0238
https://bugs.launchpad.net/ubuntu/+source/pango1.0/+bug/696616

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