Buffer overflow in the t2p_write_pdf_string function in tiff2pdf in libtiff 3.8.2 and earlier allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via a TIFF file with a DocumentName tag that contains UTF-8 characters, which triggers the overflow when a character is sign extended to an integer that produces more digits than expected in an sprintf call.
NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.
|Base Score:||7.5||Base Metrics:||AV:N/AC:L/Au:N/C:P/I:P/A:P|
|Access Vector:||Network||Attack Complexity:||Low|
|Authentication:||None required||Confidentiality Impact:||Partial|
|Integrity Impact:||Partial||Availability Impact:||Partial|
|Oracle Enterprise Linux version 4 (libtiff)||ELSA-2008-0848||2008-08-28|
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