synced 13 MIN AGO
01 Record

CVE-2009-3720

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

UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
27.92% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 97.9% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-07-20.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2009-11-03 16:00Z16 YR AGO
Last updated
2024-08-07 06:38Z2 YR AGO
Reserved
2009-10-16
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.1
Document digest
3cd092b5ee603cde58248fa927d4d7e27c5f74fac543d145424648076a57e89a

05 Affected products

VendorProductVersionsPlatforms
apachehttp_serverNot specified—
libexpat_projectlibexpatNot specified—
pythonpythonNot specified—
pythonpyxmlNot specified—
redhatenterprise_linuxNot specified—
redhatjboss_enterprise_web_serverNot specified—

06 References

07 Fixed in

Debian 12

  • audacity
    Fixed in 1.3.2-1
  • cadaver
    No fix yet
  • cmake
    Fixed in 2.6.0-6
  • coin3
    Fixed in 4.0.0~CMake~6f54f1602475+ds1-1
  • expat
    Fixed in 2.0.1-5
  • gdcm
    Fixed in 2.0.14-2
  • ghostscript
    Fixed in 8.71~dfsg-2
  • libxmltok
    No fix yet
  • matanza
    No fix yet
  • mcabber
    Fixed in 0.10.0-1
  • paraview
    Fixed in 3.6.2-1
  • poco
    Fixed in 1.3.6p1-1
  • simgear
    Fixed in 2.10.0-1
  • tdom
    Fixed in 0.8.3~20080525-1
  • tla
    Fixed in 1.3.5+dfsg-15
  • udunits
    Fixed in 2.1.8-4
  • xmlrpc-c
    Fixed in 1.06.27-1.1
  • xotcl
    Fixed in 1.6.5-1.2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • audacity
    Fixed in 1.3.2-1
  • cadaver
    No fix yet
  • cmake
    Fixed in 2.6.0-6
  • coin3
    Fixed in 4.0.0~CMake~6f54f1602475+ds1-1
  • expat
    Fixed in 2.0.1-5
  • gdcm
    Fixed in 2.0.14-2
  • ghostscript
    Fixed in 8.71~dfsg-2
  • matanza
    No fix yet
  • mcabber
    Fixed in 0.10.0-1
  • paraview
    Fixed in 3.6.2-1
  • poco
    Fixed in 1.3.6p1-1
  • simgear
    Fixed in 2.10.0-1
  • tdom
    Fixed in 0.8.3~20080525-1
  • udunits
    Fixed in 2.1.8-4
  • xmlrpc-c
    Fixed in 1.06.27-1.1
  • xotcl
    Fixed in 1.6.5-1.2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • audacity
    Fixed in 1.3.2-1
  • cadaver
    No fix yet
  • cmake
    Fixed in 2.6.0-6
  • coin3
    Fixed in 4.0.0~CMake~6f54f1602475+ds1-1
  • expat
    Fixed in 2.0.1-5
  • gdcm
    Fixed in 2.0.14-2
  • ghostscript
    Fixed in 8.71~dfsg-2
  • matanza
    No fix yet
  • paraview
    Fixed in 3.6.2-1
  • poco
    Fixed in 1.3.6p1-1
  • simgear
    Fixed in 2.10.0-1
  • tdom
    Fixed in 0.8.3~20080525-1
  • udunits
    Fixed in 2.1.8-4
  • xmlrpc-c
    Fixed in 1.06.27-1.1
  • xotcl
    Fixed in 1.6.5-1.2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • cadaver
    No fix yet
  • matanza
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • cadaver
    No fix yet
  • matanza
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • cadaver
    No fix yet
  • coin3
    No fix yet
  • matanza
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • cadaver
    No fix yet
  • coin3
    No fix yet
  • matanza
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • cadaver
    No fix yet
  • coin3
    No fix yet
  • matanza
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • cadaver
    No fix yet
  • coin3
    No fix yet
  • matanza
    No fix yet
  • sitecopy
    No fix yet
  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • cadaver
    No fix yet
  • coin3
    No fix yet
  • matanza
    No fix yet
  • paraview
    No fix yet
  • sitecopy
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • cadaver
    No fix yet
  • coin3
    No fix yet
  • matanza
    No fix yet
  • sitecopy
    No fix yet
  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • coin3
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • cableswig
    No fix yet
  • coin3
    No fix yet
  • insighttoolkit
    No fix yet
  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • coin3
    No fix yet
  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 22.04 LTS

  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 24.04 LTS

  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 26.04 LTS

  • swish-e
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.