diff -Nru jinja2-2.10.1/debian/changelog jinja2-2.10.1/debian/changelog
--- jinja2-2.10.1/debian/changelog	2024-01-22 10:14:05.000000000 +0000
+++ jinja2-2.10.1/debian/changelog	2024-01-22 10:14:05.000000000 +0000
@@ -1,5 +1,9 @@
-jinja2 (2.10.1-2ubuntu0.1) focal-security; urgency=medium
+jinja2 (2.10.1-2ubuntu0.2) focal-security; urgency=medium
 
+  * SECURITY UPDATE: regular expression DoS
+    - debian/patches/CVE-2020-28493.patch: rewrite regex match for
+      punctuation in urlize() in jinja2/utils.py.
+    - CVE-2020-28493
   * SECURITY UPDATE: Cross-Site scripting
     - debian/patches/CVE-2024-22195.patch: disallow keys with spaces
       in jinja2/filters.py, tests/test_filters.py.
diff -Nru jinja2-2.10.1/debian/patches/CVE-2020-28493.patch jinja2-2.10.1/debian/patches/CVE-2020-28493.patch
--- jinja2-2.10.1/debian/patches/CVE-2020-28493.patch	1970-01-01 00:00:00.000000000 +0000
+++ jinja2-2.10.1/debian/patches/CVE-2020-28493.patch	2024-01-22 10:14:05.000000000 +0000
@@ -0,0 +1,121 @@
+From ef658dc3b6389b091d608e710a810ce8b87995b3 Mon Sep 17 00:00:00 2001
+From: David Lord <davidism@gmail.com>
+Date: Sun, 31 Jan 2021 07:54:40 -0800
+Subject: [PATCH] speed up urlize matching
+Index: jinja2-2.10.1/jinja2/utils.py
+===================================================================
+--- jinja2-2.10.1.orig/jinja2/utils.py
++++ jinja2-2.10.1/jinja2/utils.py
+@@ -20,20 +20,10 @@ except:
+ from threading import Lock
+ from jinja2._compat import text_type, string_types, implements_iterator, \
+      url_quote
++from string import ascii_letters as _letters
++from string import digits as _digits
+ 
+ 
+-_word_split_re = re.compile(r'(\s+)')
+-_punctuation_re = re.compile(
+-    '^(?P<lead>(?:%s)*)(?P<middle>.*?)(?P<trail>(?:%s)*)$' % (
+-        '|'.join(map(re.escape, ('(', '<', '&lt;'))),
+-        '|'.join(map(re.escape, ('.', ',', ')', '>', '\n', '&gt;')))
+-    )
+-)
+-_simple_email_re = re.compile(r'^\S+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+$')
+-_striptags_re = re.compile(r'(<!--.*?-->|<[^>]*>)')
+-_entity_re = re.compile(r'&([^;]+);')
+-_letters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
+-_digits = '0123456789'
+ 
+ # special singleton representing missing values for the runtime
+ missing = type('MissingType', (), {'__repr__': lambda x: 'missing'})()
+@@ -208,35 +198,65 @@ def urlize(text, trim_url_limit=None, re
+     trim_url = lambda x, limit=trim_url_limit: limit is not None \
+                          and (x[:limit] + (len(x) >=limit and '...'
+                          or '')) or x
+-    words = _word_split_re.split(text_type(escape(text)))
++    words = re.split(r"(\s+)", text_type(escape(text)))
+     rel_attr = rel and ' rel="%s"' % text_type(escape(rel)) or ''
+     target_attr = target and ' target="%s"' % escape(target) or ''
+ 
+     for i, word in enumerate(words):
+-        match = _punctuation_re.match(word)
++        head, middle, tail = "", word, ""
++        match = re.match(r"^([(<]|&lt;)+", middle)
++
+         if match:
+-            lead, middle, trail = match.groups()
+-            if middle.startswith('www.') or (
+-                '@' not in middle and
+-                not middle.startswith('http://') and
+-                not middle.startswith('https://') and
+-                len(middle) > 0 and
+-                middle[0] in _letters + _digits and (
+-                    middle.endswith('.org') or
+-                    middle.endswith('.net') or
+-                    middle.endswith('.com')
+-                )):
+-                middle = '<a href="http://%s"%s%s>%s</a>' % (middle,
+-                    rel_attr, target_attr, trim_url(middle))
+-            if middle.startswith('http://') or \
+-               middle.startswith('https://'):
+-                middle = '<a href="%s"%s%s>%s</a>' % (middle,
+-                    rel_attr, target_attr, trim_url(middle))
+-            if '@' in middle and not middle.startswith('www.') and \
+-               not ':' in middle and _simple_email_re.match(middle):
+-                middle = '<a href="mailto:%s">%s</a>' % (middle, middle)
+-            if lead + middle + trail != word:
+-                words[i] = lead + middle + trail
++            head = match.group()
++            middle = middle[match.end() :]
++
++        # Unlike lead, which is anchored to the start of the string,
++        # need to check that the string ends with any of the characters
++        # before trying to match all of them, to avoid backtracking.
++        if middle.endswith((")", ">", ".", ",", "\n", "&gt;")):
++            match = re.search(r"([)>.,\n]|&gt;)+$", middle)
++
++            if match:
++                tail = match.group()
++                middle = middle[: match.start()]
++
++        if middle.startswith("www.") or (
++            "@" not in middle
++            and not middle.startswith("http://")
++            and not middle.startswith("https://")
++            and len(middle) > 0
++            and middle[0] in _letters + _digits
++            and (
++                middle.endswith(".org")
++                or middle.endswith(".net")
++                or middle.endswith(".com")
++            )
++        ):
++            middle = '<a href="http://%s"%s%s>%s</a>' % (
++                middle,
++                rel_attr,
++                target_attr,
++                trim_url(middle),
++            )
++
++        if middle.startswith("http://") or middle.startswith("https://"):
++            middle = '<a href="%s"%s%s>%s</a>' % (
++                middle,
++                rel_attr,
++                target_attr,
++                trim_url(middle),
++            )
++
++        if (
++            "@" in middle
++            and not middle.startswith("www.")
++            and ":" not in middle
++            and re.match(r"^\S+@\w[\w.-]*\.\w+$", middle)
++        ):
++            middle = '<a href="mailto:%s">%s</a>' % (middle, middle)
++
++        words[i] = head + middle + tail
++
+     return u''.join(words)
+ 
+ 
diff -Nru jinja2-2.10.1/debian/patches/series jinja2-2.10.1/debian/patches/series
--- jinja2-2.10.1/debian/patches/series	2024-01-19 10:54:36.000000000 +0000
+++ jinja2-2.10.1/debian/patches/series	2024-01-22 10:14:05.000000000 +0000
@@ -1,2 +1,3 @@
 py3.9-fix-collections-import.patch
 CVE-2024-22195.patch
+CVE-2020-28493.patch