CVE-2010-0421: Buffer Overflow
First published: Fri Jan 15 2010(Updated: )
Array index error in the hb_ot_layout_build_glyph_classes function in pango/opentype/hb-ot-layout.cc in Pango before 1.27.1 allows context-dependent attackers to cause a denial of service (application crash) via a crafted font file, related to building a synthetic Glyph Definition (aka GDEF) table by using this font's charmap and the Unicode property database.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNOME Pango | <=1.27 |
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Reference Links
- http://www.securityfocus.com/bid/38760
- https://bugzilla.redhat.com/show_bug.cgi?id=555831
- http://securitytracker.com/id?1023711
- http://ftp.gnome.org/pub/GNOME/sources/pango/1.27/pango-1.27.1.tar.bz2
- http://www.redhat.com/support/errata/RHSA-2010-0140.html
- http://www.vupen.com/english/advisories/2010/0627
- http://secunia.com/advisories/39041
- http://www.vupen.com/english/advisories/2010/0661
- http://www.debian.org/security/2010/dsa-2019
- http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:121
- http://www.vupen.com/english/advisories/2010/1552
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9417
- https://rhn.redhat.com/errata/RHSA-2010-0140.html
- http://git.gnome.org/browse/pango/commit/?id=797d46714d27f147277fdd5346648d838c68fb8c
Frequently Asked Questions
What is the severity of CVE-2010-0421?
CVE-2010-0421 has been classified as having a moderate severity level due to its potential to cause application crashes.
How do I fix CVE-2010-0421?
To address CVE-2010-0421, upgrade Pango to version 1.27.1 or later where the vulnerability is patched.
What kind of attacks can exploit CVE-2010-0421?
CVE-2010-0421 can be exploited by attackers using crafted font files to trigger a denial of service attack.
What versions of Pango are affected by CVE-2010-0421?
Pango versions prior to 1.27.1 are affected by CVE-2010-0421.
Can CVE-2010-0421 lead to data exposure?
CVE-2010-0421 primarily causes denial of service, and does not directly lead to data exposure.
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