<div class="container">
<h1>Security update for tiff</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:2853-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-07-10T17:54:45Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>important</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1268434">bsc#1268434</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1269779">bsc#1269779</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>
Cross-References:
</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-12912.html">CVE-2026-12912</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-36849.html">CVE-2026-36849</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-4775.html">CVE-2026-4775</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>CVSS scores:</th>
<td>
<ul class="list-group">
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12912</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12912</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12912</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-36849</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4775</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.8</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4775</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.6</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4775</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4775</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP7</li>
<li class="list-group-item">openSUSE Leap 15.6</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP7</li>
<li class="list-group-item">SUSE Package Hub 15 15-SP7</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves three vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for tiff fixes the following issues:</p>
<p>Update to version 4.7.2.</p>
<p>Security issues fixed:</p>
<ul>
<li>CVE-2026-12912: heap-based buffer overflow when processing crafted PixarLog-compressed TIFF image (bsc#1269779).</li>
<li>CVE-2026-36849: denial of service when processing a a crafted TIFF file containing a large SamplesPerPixel tag value
(bsc#1268434).</li>
</ul>
<p>Other updates and bugfixes:</p>
<ul>
<li>Version 4.7.2:</li>
<li>Software configuration changes:<ul>
<li>cmake: Fix bundle identifiers to use reverse-DNS format</li>
<li>cmake: Fix and improve Apple framework build support</li>
<li>cmake: Use TurboJPEG CONFIG by default (issue #767)</li>
<li>cmake: changes related to 8-/12-bit modes</li>
<li>cmake: Replace CMath::CMath with direct link to avoid export.</li>
<li>Support for iOS-derived builds</li>
<li>Simplify cmake byte order version check</li>
<li>Add additional warnings, primarily floating precision conversions and integer arithmetic conversions</li>
<li>configure.ac: Require bootstrap with at least Autoconf 2.71.</li>
</ul>
</li>
<li>Library changes:<ul>
<li>New/improved functionalities::</li>
<li>Add TIFFGetMaxCompressionRatio() and use it in _TIFFReadEncoded[Tile|Strip)AndAllocBuffer() (issue #781)</li>
</ul>
</li>
<li>Bug fixes:<ul>
<li>Handle negative TIFFReadFile results before state updates (issue #854)</li>
<li>tif_dirread.c: fix copy-paste bug in ChopUpSingleUncompressedStrip</li>
<li>tif_read.c: Fixed division by zero in TIFFStartStrip() (issue #777)</li>
<li>tif_dirwrite.c: add integer overflow checks to allocation size calculations</li>
<li>tif_print.c: add integer overflow checks to allocation size calculations</li>
<li>tif_write.c: fix OOB read and underflow in TIFFAppendToStrip copy loop</li>
<li>DumpModeSeek: add bounds check to prevent OOB pointer advance</li>
<li>TIFFGrowStrips: fix use-after-free on partial realloc failure.</li>
<li>Fix NULL dereference in _TIFFReserveLargeEnoughWriteBuffer() by validating the strip bytecount array before
accessing it.</li>
<li>TIFFRGBAImage: avoid int overflows in put functions (issue #830)</li>
<li>tif_getimage: fix inconsistent fromskew handling in put16bitbwtile (issue #792)</li>
<li>tif_getimage: Widen pointer-offset arithmetic in tif_getimage</li>
<li>putcontig8bitYCbCr44tile: fix wrong fromskew computation (issue #798)</li>
<li>putcontig8bitYCbCr42tile: Reject invalid YCbCr subsampling when image dimensions are smaller than the subsampling
block to prevent out-of-bounds writes. (issue #753)</li>
<li>TIFFReadRGBAImage(): prevent integer overflow and later heap overflow (issue #787)</li>
<li>TIFFFillStrip/Tile(): avoid excessive memory allocation (issue #831)</li>
<li>TIFFLinkDirectory() checks for IFD loops (issue #788)</li>
<li>Check result of _TIFFCheckRealloc to prevent memory leaks and segmentation fault when reallocation fails.</li>
<li>TIFFVTileSize64(): in YCbCr contig non upsampled mode, validate td_samplesperpixel==3 (issue #805)</li>
<li>TIFFReadDirEntryPersampleShort(): be tolerant to tags like SampleFormat not having 1 or SamplesPerPixel values
(https://github.com/OSGeo/gdal/issues/13465)</li>
<li>tif_getimage: reject tile widths that would overflow toskew (issue #808)</li>
<li>Fix integer overflow in _TIFFPartialReadStripArray on 32-bit.</li>
<li>TIFFAppendToStrip(): add some checks to avoid null-pointer-dereferencing (issue #777).</li>
<li>_TIFFGetStrileOffsetOrByteCountValue(): fix potential crash on corrupted files when file opened in 'O' mode
(https://issues.oss-fuzz.com/issues/471328917)</li>
<li>TIFFReadDirectory(): re-set TIFF_LAZYSTRILELOAD if file opened in 'O' mode</li>
<li>_TIFFMergeFields(): avoid NULL ptr dereference (issue #755).</li>
<li>Check td_stripbytecount_p and td_stripoffset_p for NULL pointer before (re-)writing to file. (issue #749)</li>
<li>JPEGDecodeRaw: initialize output buffer to avoid returning uninitialized memory (issue #892)</li>
<li>JPEG decompressor: initialize output buffer when JPEG image is smaller than strile dimension to avoid heap memory
disclosure (issue #826)</li>
<li>JPEG: fix generation of tiled 12-bit JPEG compressed files with libjpeg-turbo 3.0.3 (issue #773)</li>
<li>JPEGDecode(): fix memory leak in error code path (https://issues.oss-fuzz.com/issues/471945501)</li>
<li>tif_jpeg: reject mismatched JPEG data precision to avoid write overflow</li>
<li>Fix signed left-shift UB in LogLuv RANDITHER encoding (issue #850)</li>
<li>PixarLog: error out on invalid ABGR output buffer sizes.</li>
<li>PixarLog: complete ABGR bounds check for multi-row strip decoding.</li>
<li>PixarLog: fix heap-buffer-overflow in 8BITABGR decode with stride 3 (issue #824)</li>
<li>PixarLog: fix undoing horizontal differencing when SamplesPerPixel != 3 and 4 (issue #789).</li>
<li>PixarLog codec: fix potential integer overflow/out-of-bounds access (issue #797)</li>
<li>TIFFAdvanceDirectory(): avoid potential read heap-buffer-overflow in mmap code path on 32 bit builds
(https://issues.oss-fuzz.com/issues/506737072)</li>
<li>OJPEG: fix integer overflow in subsampling buffer allocation.</li>
<li>OJPEG: fix nullptr deref when changing compression method from OJPEG to something else (issue #795).</li>
<li>OJPEG fix potential integer overflow/out-of-bounds access (issue #796).</li>
<li>ojpeg: prevent EOF infinite loop (fixes commit 2a3d55b)</li>
<li>fix null pointer deference in issue #782.</li>
<li>fix stack-overflow in issue #784.</li>
</ul>
</li>
<li>Other changes:<ul>
<li>Change EXIF and GPS tag type from IFD8 to LONG8 per EXIF-specification (issue #739).</li>
<li>Harden integer size and offset calculations (issue #897)</li>
<li>TIFFComputeTile/TIFFComputeStrip: use overflow-checked multiplication</li>
<li>Move widening casts inside multiplication scope.</li>
<li>Lots of compiler warning fixes related to enabling more warning flags</li>
<li>Align writing and reading of TIFF_LONG8 and TIFF_IFD8 tags (issue #773)</li>
<li>TIFFFillStrip(): prevent harmless unsigned integer overflow</li>
</ul>
</li>
</ul>
<h2>Patch Instructions:</h2>
<p>
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".<br/>
Alternatively you can run the command listed for your product:
</p>
<ul class="list-group">
<li class="list-group-item">
SUSE Package Hub 15 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-2853=1</code>
</li>
<li class="list-group-item">
Basesystem Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2853=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP6 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2853=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2853=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch SUSE-2026-2853=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>libtiff6-4.7.2-150600.3.29.1</li>
<li>libtiff6-debuginfo-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-4.7.2-150600.3.29.1</li>
<li>tiff-debugsource-4.7.2-150600.3.29.1</li>
<li>tiff-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
<ul>
<li>libtiff6-32bit-4.7.2-150600.3.29.1</li>
<li>libtiff6-32bit-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
<ul>
<li>libtiff6-4.7.2-150600.3.29.1</li>
<li>libtiff6-debuginfo-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-4.7.2-150600.3.29.1</li>
<li>tiff-debugsource-4.7.2-150600.3.29.1</li>
<li>tiff-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
<ul>
<li>libtiff6-32bit-4.7.2-150600.3.29.1</li>
<li>libtiff6-32bit-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>libtiff6-4.7.2-150600.3.29.1</li>
<li>libtiff6-debuginfo-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-4.7.2-150600.3.29.1</li>
<li>tiff-debugsource-4.7.2-150600.3.29.1</li>
<li>tiff-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (x86_64)
<ul>
<li>libtiff6-32bit-4.7.2-150600.3.29.1</li>
<li>libtiff6-32bit-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>tiff-4.7.2-150600.3.29.1</li>
<li>tiff-debugsource-4.7.2-150600.3.29.1</li>
<li>tiff-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
<ul>
<li>libtiff6-4.7.2-150600.3.29.1</li>
<li>libtiff6-debuginfo-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-4.7.2-150600.3.29.1</li>
<li>tiff-4.7.2-150600.3.29.1</li>
<li>tiff-debugsource-4.7.2-150600.3.29.1</li>
<li>tiff-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (x86_64)
<ul>
<li>libtiff6-32bit-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-32bit-4.7.2-150600.3.29.1</li>
<li>libtiff6-32bit-debuginfo-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64_ilp32)
<ul>
<li>libtiff6-64bit-4.7.2-150600.3.29.1</li>
<li>libtiff6-64bit-debuginfo-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-64bit-4.7.2-150600.3.29.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (noarch)
<ul>
<li>tiff-docs-4.7.2-150600.3.29.1</li>
<li>libtiff-devel-docs-4.7.2-150600.3.29.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-12912.html">https://www.suse.com/security/cve/CVE-2026-12912.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-36849.html">https://www.suse.com/security/cve/CVE-2026-36849.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-4775.html">https://www.suse.com/security/cve/CVE-2026-4775.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1268434">https://bugzilla.suse.com/show_bug.cgi?id=1268434</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1269779">https://bugzilla.suse.com/show_bug.cgi?id=1269779</a>
</li>
</ul>
</div>