CVE-2009-2347

CVE-2009-2347 is a critical-severity vulnerability in Libtiff with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 4% (90th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Libtiff
• Published: 2009-07-14
• Last modified: 2026-06-16

Description

Multiple integer overflows in inter-color spaces conversion tools in libtiff 3.8 through 3.8.2, 3.9, and 4.0 allow context-dependent attackers to execute arbitrary code via a TIFF image with large (1) width and (2) height values, which triggers a heap-based buffer overflow in the (a) cvt_whole_image function in tiff2rgba and (b) tiffcvt function in rgb2ycbcr.

Frequently asked questions

What is CVE-2009-2347?

Multiple integer overflows in inter-color spaces conversion tools in libtiff 3.8 through 3.8.2, 3.9, and 4.0 allow context-dependent attackers to execute arbitrary code via a TIFF image with large (1) width and (2) height values, which triggers a heap-based buffer overflow in the (a) cvt_whole_image function in tiff2rgba and (b) tiffcvt function in rgb2ycbcr.

How severe is CVE-2009-2347?

CVE-2009-2347 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-2347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2347?

CVE-2009-2347 primarily affects Libtiff. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2347?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-2347 published?

CVE-2009-2347 was published on 2009-07-14 and last updated on 2026-06-16.

References

• http://article.gmane.org/gmane.linux.debian.devel.changes.unstable/178563/
• http://bugzilla.maptools.org/show_bug.cgi?id=2079
• http://osvdb.org/55821
• http://osvdb.org/55822
• http://secunia.com/advisories/35811
• http://secunia.com/advisories/35817
• http://secunia.com/advisories/35866
• http://secunia.com/advisories/35883
• http://secunia.com/advisories/35911
• http://secunia.com/advisories/36194
• http://secunia.com/advisories/50726
• http://security.gentoo.org/glsa/glsa-200908-03.xml
• http://security.gentoo.org/glsa/glsa-201209-02.xml
• http://www.debian.org/security/2009/dsa-1835
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:150
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:043
• http://www.ocert.org/advisories/ocert-2009-012.html
• http://www.redhat.com/support/errata/RHSA-2009-1159.html
• http://www.securityfocus.com/archive/1/504892/100/0/threaded
• http://www.securityfocus.com/bid/35652
• http://www.securitytracker.com/id?1022539
• http://www.ubuntu.com/usn/USN-801-1
• http://www.vupen.com/english/advisories/2009/1870
• http://www.vupen.com/english/advisories/2011/0621
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-2347
• https://exchange.xforce.ibmcloud.com/vulnerabilities/51688
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10988
• https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00663.html
• https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00724.html

Affected products (5)

• cpe:2.3:a:libtiff:libtiff:3.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.9:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:4.0:*:*:*:*:*:*:*

More vulnerabilities in Libtiff

• CVE-2004-0929 — Critical (CVSS 10.0): Heap-based buffer overflow in the OJPEGVSetField function in tif_ojpeg.c for libtiff 3.6.1 and earlier, when compiled…
• CVE-2004-1308 — Critical (CVSS 10.0): Integer overflow in (1) tif_dirread.c and (2) tif_fax3.c for libtiff 3.5.7 and 3.7.0 allows remote attackers to execute…
• CVE-2016-9540 — Critical (CVSS 9.8): tools/tiffcp.c in libtiff 4.0.6 has an out-of-bounds write on tiled images with odd tile width versus image width.…
• CVE-2016-9539 — Critical (CVSS 9.8): tools/tiffcrop.c in libtiff 4.0.6 has an out-of-bounds read in readContigTilesIntoBuffer(). Reported as MSVR 35092.
• CVE-2016-9538 — Critical (CVSS 9.8): tools/tiffcrop.c in libtiff 4.0.6 reads an undefined buffer in readContigStripsIntoBuffer() because of a uint16 integer…
• CVE-2016-9537 — Critical (CVSS 9.8): tools/tiffcrop.c in libtiff 4.0.6 has out-of-bounds write vulnerabilities in buffers. Reported as MSVR 35093, MSVR…

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