git: 47955717fc53 - main - security/vuxml: Add textproc/expat2 vulnerabilities

The branch main has been updated by fernape:

URL: https://cgit.FreeBSD.org/ports/commit/?id=47955717fc531fc03406f32b1c6737e9d57dac1b

commit 47955717fc531fc03406f32b1c6737e9d57dac1b
Author:     Fernando Apesteguía <fernape@FreeBSD.org>
AuthorDate: 2024-09-27 07:57:42 +0000
Commit:     Fernando Apesteguía <fernape@FreeBSD.org>
CommitDate: 2024-09-27 08:42:19 +0000

    security/vuxml: Add textproc/expat2 vulnerabilities
    
    CVE-2024-45490
    CVE-2024-45491
    CVE-2024-45492
    
    PR:             281738
    Reported by:    FiLiS <freebsdbugs@filis.org>
---
 security/vuxml/vuln/2024.xml | 48 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/security/vuxml/vuln/2024.xml b/security/vuxml/vuln/2024.xml
index 32e176bfdd69..27d3c4a2b080 100644
--- a/security/vuxml/vuln/2024.xml
+++ b/security/vuxml/vuln/2024.xml
@@ -1,3 +1,51 @@
+  <vuln vid="ca5f3bbc-7a62-11ef-9533-f875a43e1796">
+    <topic>expat -- multiple vulnerabilities</topic>
+    <affects>
+      <package>
+	<name>expat2</name>
+	<range><lt>2.6.3</lt></range>
+      </package>
+    </affects>
+    <description>
+	<body xmlns="http://www.w3.org/1999/xhtml">
+	<p>libexpat reports:</p>
+	<blockquote cite="https://github.com/libexpat/libexpat/blob/master/expat/Changes">
+	<ul>
+	<li>CVE-2024-45490: Calling function XML_ParseBuffer with
+	len &lt; 0 without noticing and then calling XML_GetBuffer
+	will have XML_ParseBuffer fail to recognize the problem
+	and XML_GetBuffer corrupt memory.
+	With the fix, XML_ParseBuffer now complains with error
+	XML_ERROR_INVALID_ARGUMENT just like sibling XML_Parse
+	has been doing since Expat 2.2.1, and now documented.
+	Impact is denial of service to potentially artitrary code
+	execution.</li>
+	<li>CVE-2024-45491: Internal function dtdCopy can have an
+	integer overflow for nDefaultAtts on 32-bit platforms
+	(where UINT_MAX equals SIZE_MAX).
+	Impact is denial of service to potentially artitrary code
+	execution.</li>
+	<li>CVE-2024-45492: Internal function nextScaffoldPart can
+	have an integer overflow for m_groupSize on 32-bit
+	platforms (where UINT_MAX equals SIZE_MAX).
+	Impact is denial of service to potentially artitrary code
+	execution.</li>
+	</ul>
+	</blockquote>
+	</body>
+    </description>
+    <references>
+      <cvename>CVE-2024-45490</cvename>
+      <cvename>CVE-2024-45491</cvename>
+      <cvename>CVE-2024-45492</cvename>
+      <url>https://github.com/libexpat/libexpat/blob/master/expat/Changes</url>
+    </references>
+    <dates>
+      <discovery>2024-09-24</discovery>
+      <entry>2024-09-24</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="4b7ed61f-7bbf-11ef-9369-2cf05da270f3">
     <topic>Gitlab -- vulnerabilities</topic>
     <affects>