<div class="container">
<h1>Security update for python-tornado6</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:20007-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2025-12-22T13:30:40Z</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=1254903">bsc#1254903</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254904">bsc#1254904</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254905">bsc#1254905</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-2025-67724.html">CVE-2025-67724</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-67725.html">CVE-2025-67725</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-67726.html">CVE-2025-67726</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-2025-67724</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67724</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67724</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67724</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67725</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67725</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67725</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67726</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67726</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-67726</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Micro 6.1</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 python-tornado6 fixes the following issues:</p>
<ul>
<li>CVE-2025-67724: unescaped <code>reason</code> argument used in HTTP headers and in HTML default error pages can be used by
attackers to launch header injection or XSS attacks (bsc#1254903).</li>
<li>CVE-2025-67725: quadratic complexity of string concatenation operations used by the <code>HTTPHeaders.add</code> method can lead
to DoS when processing a maliciously crafted HTTP request (bsc#1254905).</li>
<li>CVE-2025-67726: quadratic complexity algorithm used in the <code>_parseparam</code> function of <code>httputil.py</code> can lead to DoS
when processing maliciously crafted parameters in a <code>Content-Disposition</code> header (bsc#1254904).</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 Linux Micro 6.1
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-6.1-356=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
<ul>
<li>python-tornado6-debugsource-6.4-slfo.1.1_3.1</li>
<li>python311-tornado6-6.4-slfo.1.1_3.1</li>
<li>python311-tornado6-debuginfo-6.4-slfo.1.1_3.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-67724.html">https://www.suse.com/security/cve/CVE-2025-67724.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-67725.html">https://www.suse.com/security/cve/CVE-2025-67725.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-67726.html">https://www.suse.com/security/cve/CVE-2025-67726.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254903">https://bugzilla.suse.com/show_bug.cgi?id=1254903</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254904">https://bugzilla.suse.com/show_bug.cgi?id=1254904</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254905">https://bugzilla.suse.com/show_bug.cgi?id=1254905</a>
</li>
</ul>
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