VDB
CVE-2009-3720
CVE-2009-3720
PUBLISHED
The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a different vulnerability than CVE-2009-2625.
EPSS 1.57% · 81.9th percentile
Risk Scores
EPSS Score
1.57%
81.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | insighttoolkit | 0, 3.20.1+git20120521-6build1, 3.20.1+git20120521-6 |
| Ubuntu:25.10 | swish-e | 2.4.7-6.3build1, 0, 2.4.7-6.3 |
| Ubuntu:18.04:LTS | cadaver | 0, 0.23.3-2ubuntu3 |
| Ubuntu:20.04:LTS | matanza | 0.13+ds2-1, 0.13+ds1-6, 0 |
| Ubuntu:24.04:LTS | swish-e | 2.4.7-6.2, 0, 2.4.7-6.2build1 |
| Ubuntu:25.10 | coin3 | 0, 4.0.3+ds-2 |
| Ubuntu:20.04:LTS | coin3 | 4.0.0~CMake~6f54f1602475+ds1-3, *, 0 |
| Ubuntu:25.10 | matanza | 0.13+ds2-2, 0 |
| Ubuntu:20.04:LTS | swish-e | 2.4.7-6build2, 0, 2.4.7-6build1 |
| Ubuntu:22.04:LTS | swish-e | 2.4.7-6build3, 2.4.7-6.1build1, 2.4.7-6.1 |
| Ubuntu:Pro:16.04:LTS | coin3 | 3.1.4~abc9f50+dfsg1-1, 0, 3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm1 |
| Ubuntu:16.04:LTS | cadaver | 0.23.3-2ubuntu2, 0 |
| Ubuntu:25.10 | sitecopy | 1:0.16.6-16, 0, 1:0.16.6-16build1 |
| Ubuntu:25.10 | cadaver | *, 0 |
| Ubuntu:Pro:14.04:LTS | coin3 | 0, 3.1.4~abc9f50-4ubuntu2, 3.1.4~abc9f50-4 |
| Ubuntu:22.04:LTS | matanza | 0, 0.13+ds2-1 |
| Ubuntu:22.04:LTS | coin3 | 4.0.0+ds-1build1, 0, * |
| Ubuntu:24.04:LTS | coin3 | 0, 4.0.0+ds-5, 4.0.2+ds-1 |
| Ubuntu:16.04:LTS | swish-e | 2.4.7-4, 0, 2.4.7-4build1 |
| Ubuntu:18.04:LTS | matanza | *, 0.13+ds1-6, 0 |
…and 8 more
Exploit Intelligence
- FILE-OTHER Expat xml UTF-8 buffer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 buffer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 bufer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 bufer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 buffer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 buffer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 buffer over-read attempt [disabled] (vulnetix)
- FILE-OTHER Expat xml UTF-8 buffer over-read attempt [disabled] (vulnetix)
- futurezayka/CVE-2011-3192 (github-poc)
- futurezayka/CVE-2011-3192 (github-poc)
…and 39 more exploits
Timeline
- CVE Published
- Feb 14, 2016 PoC Published
- Feb 4, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 9, 2023 EPSS Score
- Apr 3, 2023 EPSS Score
- Jul 17, 2023 EPSS Score
- Oct 30, 2023 EPSS Score
- Feb 13, 2024 EPSS Score
- Apr 5, 2024 EPSS Score
References
- https://ubuntu.com/security/CVE-2009-3720 third-party-advisory
- https://ubuntu.com/security/notices/USN-890-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-890-2 vendor-advisory
- https://ubuntu.com/security/notices/USN-890-3 vendor-advisory
- https://ubuntu.com/security/notices/USN-890-4 vendor-advisory
- https://ubuntu.com/security/notices/USN-890-5 vendor-advisory
- https://ubuntu.com/security/notices/USN-890-6 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2009-3720 third-party-advisory