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[ GLSA 200607-03 ] libTIFF: Multiple buffer overflows
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PostPosted: Sun Jul 09, 2006 6:26 pm    Post subject: [ GLSA 200607-03 ] libTIFF: Multiple buffer overflows Reply with quote

Gentoo Linux Security Advisory

Title: libTIFF: Multiple buffer overflows (GLSA 200607-03)
Severity: normal
Exploitable: remote
Date: July 09, 2006
Bug(s): #135881
ID: 200607-03

Synopsis

libTIFF contains buffer overflows that could result in arbitrary code execution.

Background

libTIFF provides support for reading and manipulating TIFF images.

Affected Packages

Package: media-libs/tiff
Vulnerable: < 3.8.2-r1
Unaffected: >= 3.8.2-r1
Architectures: All supported architectures


Description

A buffer overflow has been found in the t2p_write_pdf_string function in tiff2pdf, which can been triggered with a TIFF file containing a DocumentName tag with UTF-8 characters. An additional buffer overflow has been found in the handling of the parameters in tiffsplit.

Impact

A remote attacker could entice a user to load a specially crafted TIFF file, resulting in the possible execution of arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All libTIFF users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/tiff-3.8.2-r1"


References

CVE-2006-2193
CVE-2006-2656
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