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CVE-2009-3560

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig...

5.0 MediumFix available

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Exploit likelihood

24.3%Up 21.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
CVE-2009-3560
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
CVE-2009-3560
Updated
2026-11-02
EUVDEUVD-2009-3541 No score

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
EUVD-2009-3541
Updated
2026-11-03
GitHub AdvisoriesGHSA-pcgv-8c5g-4m8p No score

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig...

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
GHSA-pcgv-8c5g-4m8p
Weakness
CWE-119
Updated
2026-11-02
OSVBELL-CVE-2009-3560 5.0

CVE-2009-3560 does not affect BellSoft software

Record
BELL-CVE-2009-3560
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
OSVAZL-43780 No score

CVE-2009-3560 affecting package ogdi 4.1.0-9

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
AZL-43780
Updated
2026-11-02
Show 8 moreShow less
OSVAZL-44736 No score

CVE-2009-3560 affecting package ogdi 4.1.1-3

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
AZL-44736
Updated
2026-11-02
OSV No score

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
CVE-2009-3560
Updated
2026-11-02
OSVDEBIAN-CVE-2009-3560 No score

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
DEBIAN-CVE-2009-3560
Updated
2026-11-02
OSVopenSUSE-SU-2024:10077-1 No score

expat-2.2.0-3.1 on GA media

These are all security issues fixed in the expat-2.2.0-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10077-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10268-1 No score

apache2-2.4.23-4.1 on GA media

These are all security issues fixed in the apache2-2.4.23-4.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10268-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10568-1 No score

libapr-util1-1.5.4-4.4 on GA media

These are all security issues fixed in the libapr-util1-1.5.4-4.4 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10568-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11586-1 No score

apr-util-devel-1.6.1-8.1 on GA media

These are all security issues fixed in the apr-util-devel-1.6.1-8.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11586-1
Updated
2026-11-02
OSVUBUNTU-CVE-2009-3560 No score

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Record
UBUNTU-CVE-2009-3560
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ogdi
Azure Linux:2
 through 4.1.0-9 None known
ogdi
Azure Linux:3
 through 4.1.1-3 None known
audacity
Debian:12
 before 1.3.2-1
1.3.2-1
audacity
Debian:13
 before 1.3.2-1
1.3.2-1
audacity
Debian:14
 before 1.3.2-1
1.3.2-1
cadaver
Debian:12
 All versions, plus listed versions
0.24+dfsg-10.24+dfsg-20.24+dfsg-30.24+dfsg-40.26+dfsg-10.26+dfsg-20.28+dfsg-10.28+dfsg-2
 None known
cadaver
Debian:13
 All versions, plus listed versions
0.26+dfsg-20.28+dfsg-10.28+dfsg-2
 None known
cadaver
Debian:14
 All versions, plus listed versions
0.26+dfsg-20.28+dfsg-10.28+dfsg-2
 None known
cmake
Debian:12
 before 2.6.0-6
2.6.0-6
cmake
Debian:13
 before 2.6.0-6
2.6.0-6
Show 106 moreShow less
Affected packages
PackageAffectedFixed
cmake
Debian:14
 before 2.6.0-6
2.6.0-6
coin3
Debian:12
 before 4.0.0~CMake~6f54f1602475+ds1-1
4.0.0~CMake~6f54f1602475+ds1-1
coin3
Debian:13
 before 4.0.0~CMake~6f54f1602475+ds1-1
4.0.0~CMake~6f54f1602475+ds1-1
coin3
Debian:14
 before 4.0.0~CMake~6f54f1602475+ds1-1
4.0.0~CMake~6f54f1602475+ds1-1
expat
Debian:12
 before 2.0.1-6
2.0.1-6
expat
Debian:13
 before 2.0.1-6
2.0.1-6
expat
Debian:14
 before 2.0.1-6
2.0.1-6
gdcm
Debian:12
 before 2.0.14-2
2.0.14-2
gdcm
Debian:13
 before 2.0.14-2
2.0.14-2
gdcm
Debian:14
 before 2.0.14-2
2.0.14-2
ghostscript
Debian:12
 before 8.71~dfsg-2
8.71~dfsg-2
ghostscript
Debian:13
 before 8.71~dfsg-2
8.71~dfsg-2
ghostscript
Debian:14
 before 8.71~dfsg-2
8.71~dfsg-2
libxmltok
Debian:12
 All versions, plus listed versions
1.2-41.2-4.11.2-4.1~exp11.2-4.2
 None known
matanza
Debian:12
 All versions, plus listed versions
0.13+ds2-10.13+ds2-2
 None known
matanza
Debian:13
 All versions, plus listed versions
0.13+ds2-2
 None known
matanza
Debian:14
 All versions, plus listed versions
0.13+ds2-2
 None known
mcabber
Debian:12
 before 0.10.0-1
0.10.0-1
mcabber
Debian:13
 before 0.10.0-1
0.10.0-1
paraview
Debian:12
 before 3.6.2-1
3.6.2-1
paraview
Debian:13
 before 3.6.2-1
3.6.2-1
paraview
Debian:14
 before 3.6.2-1
3.6.2-1
poco
Debian:12
 before 1.3.6p1-1
1.3.6p1-1
poco
Debian:13
 before 1.3.6p1-1
1.3.6p1-1
poco
Debian:14
 before 1.3.6p1-1
1.3.6p1-1
simgear
Debian:12
 before 2.10.0-1
2.10.0-1
simgear
Debian:13
 before 2.10.0-1
2.10.0-1
simgear
Debian:14
 before 2.10.0-1
2.10.0-1
tdom
Debian:12
 before 0.8.3~20080525-1
0.8.3~20080525-1
tdom
Debian:13
 before 0.8.3~20080525-1
0.8.3~20080525-1
tdom
Debian:14
 before 0.8.3~20080525-1
0.8.3~20080525-1
tla
Debian:12
 before 1.3.5+dfsg-15
1.3.5+dfsg-15
udunits
Debian:12
 before 2.1.8-4
2.1.8-4
udunits
Debian:13
 before 2.1.8-4
2.1.8-4
udunits
Debian:14
 before 2.1.8-4
2.1.8-4
xmlrpc-c
Debian:12
 before 1.06.27-1.1
1.06.27-1.1
xmlrpc-c
Debian:13
 before 1.06.27-1.1
1.06.27-1.1
xmlrpc-c
Debian:14
 before 1.06.27-1.1
1.06.27-1.1
expat
Debian:4.0
 before 1.95.8-3.4+etch2, plus listed versions
1.95.8-3.41.95.8-3.4+etch1
1.95.8-3.4+etch2
expat
Debian:5.0
 before 2.0.1-4+lenny2, plus listed versions
2.0.1-42.0.1-4+lenny1
2.0.1-4+lenny2
expat
Debian:4.0
 before 1.95.8-3.4+etch3, plus listed versions
1.95.8-3.41.95.8-3.4+etch11.95.8-3.4+etch2
1.95.8-3.4+etch3
expat
Debian:5.0
 before 2.0.1-4+lenny3, plus listed versions
2.0.1-42.0.1-4+lenny12.0.1-4+lenny2
2.0.1-4+lenny3
python2.4
Debian:4.0
 before 2.4.4-3+etch3, plus listed versions
2.4.4-32.4.4-3+etch12.4.4-3+etch2
2.4.4-3+etch3
python2.5
Debian:4.0
 before 2.5-5+etch2, plus listed versions
2.5-52.5-5+etch1
2.5-5+etch2
python2.4
Debian:5.0
 before 2.4.6-1+lenny1, plus listed versions
2.4.6-1
2.4.6-1+lenny1
python2.5
Debian:5.0
 before 2.5.2-15+lenny1, plus listed versions
2.5.2-15
2.5.2-15+lenny1
expat
Red Hat:enterprise_linux:3::as
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-debuginfo
Red Hat:enterprise_linux:3::as
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-devel
Red Hat:enterprise_linux:3::as
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat
Red Hat:enterprise_linux:3::desktop
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-debuginfo
Red Hat:enterprise_linux:3::desktop
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-devel
Red Hat:enterprise_linux:3::desktop
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat
Red Hat:enterprise_linux:3::es
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-debuginfo
Red Hat:enterprise_linux:3::es
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-devel
Red Hat:enterprise_linux:3::es
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat
Red Hat:enterprise_linux:3::ws
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-debuginfo
Red Hat:enterprise_linux:3::ws
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat-devel
Red Hat:enterprise_linux:3::ws
 before 0:1.95.5-6.2
0:1.95.5-6.2
expat
Red Hat:enterprise_linux:4::as
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-devel
Red Hat:enterprise_linux:4::as
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat
Red Hat:enterprise_linux:4::desktop
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-devel
Red Hat:enterprise_linux:4::desktop
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat
Red Hat:enterprise_linux:4::es
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-devel
Red Hat:enterprise_linux:4::es
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat
Red Hat:enterprise_linux:4::ws
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat-devel
Red Hat:enterprise_linux:4::ws
 before 0:1.95.7-4.el4_8.2
0:1.95.7-4.el4_8.2
expat
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat-debuginfo
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat-devel
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat
Red Hat:enterprise_linux:5::client
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat
Red Hat:enterprise_linux:5::server
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
expat-devel
Red Hat:enterprise_linux:5::server
 before 0:1.95.8-8.3.el5_4.2
0:1.95.8-8.3.el5_4.2
coin3
Ubuntu:Pro:14.04:LTS
 All versions, plus listed versions
3.1.4~abc9f50-33.1.4~abc9f50-43.1.4~abc9f50-4ubuntu23.1.4~abc9f50-4ubuntu2+esm13.1.4~abc9f50-4ubuntu2+esm2
 None known
cableswig
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
0.1.0+git20150808-10.1.0+git20150808-20.1.0+git20150808-2ubuntu0.1~esm1
 None known
coin3
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
3.1.4~abc9f50+dfsg1-13.1.4~abc9f50+dfsg1-1ubuntu0.1~esm13.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2
 None known
matanza
Ubuntu:16.04:LTS
 All versions, plus listed versions
0.13+ds1-5
 None known
swish-e
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
2.4.7-42.4.7-4build12.4.7-4ubuntu0.1~esm1
 None known
coin3
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
3.1.4~abc9f50+dfsg1-23.1.4~abc9f50+dfsg2-13.1.4~abc9f50+dfsg3-13.1.4~abc9f50+dfsg3-23.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1
 None known
matanza
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.13+ds1-5build10.13+ds1-6
 None known
swish-e
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
2.4.7-5ubuntu12.4.7-5ubuntu1+esm1
 None known
matanza
Ubuntu:20.04:LTS
 All versions, plus listed versions
0.13+ds1-60.13+ds2-1
 None known
swish-e
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
2.4.7-6build12.4.7-6build22.4.7-6ubuntu0.1~esm1
 None known
matanza
Ubuntu:22.04:LTS
 All versions, plus listed versions
0.13+ds2-1
 None known
swish-e
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
2.4.7-6build32.4.7-6.12.4.7-6.1build12.4.7-6.1ubuntu0.1~esm1
 None known
matanza
Ubuntu:24.04:LTS
 All versions, plus listed versions
0.13+ds2-10.13+ds2-1build10.13+ds2-1build2
 None known
swish-e
Ubuntu:Pro:24.04:LTS
 All versions, plus listed versions
2.4.7-6.22.4.7-6.2build12.4.7-6.2build22.4.7-6.2build32.4.7-6.2ubuntu0.1~esm1
 None known
matanza
Ubuntu:25.10
 All versions, plus listed versions
0.13+ds2-2
 None known
sitecopy
Ubuntu:25.10
 All versions, plus listed versions
1:0.16.6-161:0.16.6-16build1
 None known
swish-e
Ubuntu:25.10
 All versions, plus listed versions
2.4.7-6.32.4.7-6.3build12.4.7-7
 None known
matanza
Ubuntu:26.10
 All versions, plus listed versions
0.13+ds2-2build1
 None known
sitecopy
Ubuntu:26.10
 All versions, plus listed versions
1:0.16.6-16build1
 None known
swish-e
Ubuntu:26.10
 All versions, plus listed versions
2.4.7-7.12.4.7-7.22.4.7-7.2build1
 None known
matanza
Ubuntu:26.04:LTS
 All versions, plus listed versions
0.13+ds2-20.13+ds2-2build1
 None known
paraview
Ubuntu:26.04:LTS
 All versions, plus listed versions
5.13.2+dfsg-35.13.2+dfsg-3ubuntu15.13.2+dfsg-3.16.0.1+dfsg1-6ubuntu16.0.1+dfsg1-7
 None known
sitecopy
Ubuntu:26.04:LTS
 All versions, plus listed versions
1:0.16.6-16build1
 None known
swish-e
Ubuntu:Pro:26.04:LTS
 All versions, plus listed versions
2.4.7-72.4.7-7.12.4.7-7.1ubuntu0.1~esm1
 None known
expat
openSUSE:Tumbleweed
 before 2.2.0-3.1
2.2.0-3.1
apache2
openSUSE:Tumbleweed
 before 2.4.23-4.1
2.4.23-4.1
apr-util
openSUSE:Tumbleweed
 before 1.5.4-4.4
1.5.4-4.4
apr-util
openSUSE:Tumbleweed
 before 1.6.1-8.1
1.6.1-8.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-3560 is a medium vulnerability (CVSS 5.0) in Libexpat Project Libexpat, published December 4, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 24.3%, the 97th percentile. Fixed in audacity 1.3.2-1.

References

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