CVE-2011-0020
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Pango Font Parsing - 'pangoft2-render.c' Heap Corruption
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.28.3-1+squeeze1 |
| sid | Fixed | 1.28.3-1+squeeze1 |
| forky | Fixed | 1.28.3-1+squeeze1 |
| bullseye | Fixed | 1.28.3-1+squeeze1 |
| bookworm | Fixed | 1.28.3-1+squeeze1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gnome | pango | {"endIncluding":"1.28.3"} | |
| gnome | pango | 1.28.0 | |
| gnome | pango | 1.28.1 | |
| gnome | pango | 1.28.2 | |
| pango | pango | 0.20 | |
| pango | pango | 0.21 | |
| pango | pango | 0.22 | |
| pango | pango | 0.23 | |
| pango | pango | 0.24 | |
| pango | pango | 0.25 | |
| pango | pango | 0.26 | |
| pango | pango | 1.0 | |
| pango | pango | 1.1 | |
| pango | pango | 1.2 | |
| pango | pango | 1.3 | |
| pango | pango | 1.4 | |
| pango | pango | 1.5 | |
| pango | pango | 1.6 | |
| pango | pango | 1.7 | |
| pango | pango | 1.8 | |
| pango | pango | 1.9 | |
| pango | pango | 1.10 | |
| pango | pango | 1.11 | |
| pango | pango | 1.12 | |
| pango | pango | 1.13 | |
| pango | pango | 1.14 | |
| pango | pango | 1.15 | |
| pango | pango | 1.16 | |
| pango | pango | 1.17 | |
| pango | pango | 1.18 | |
| pango | pango | 1.19 | |
| pango | pango | 1.20 | |
| pango | pango | 1.21 | |
| pango | pango | 1.22 | |
| pango | pango | 1.23 | |
| pango | pango | 1.24 | |
| pango | pango | 1.25 | |
| pango | pango | 1.26 | |
| pango | pango | 1.27 | |
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
- https://bugzilla.gnome.org/show_bug.cgi?id=639882
- https://bugzilla.redhat.com/show_bug.cgi?id=671122
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64832
- https://security-tracker.debian.org/tracker/CVE-2011-0020
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.