expat-2.2.5-4.el8.3

Expat is a C library for parsing XML documents.

Security Fix(es):

* expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution (CVE-2022-25235)
* expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution (CVE-2022-25236)
* expat: Integer overflow in storeRawNames() (CVE-2022-25315)
* expat: Large number of prefixed XML attributes on a single tag can crash libexpat (CVE-2021-45960)
* expat: Integer overflow in doProlog in xmlparse.c (CVE-2021-46143)
* expat: Integer overflow in addBinding in xmlparse.c (CVE-2022-22822)
* expat: Integer overflow in build_model in xmlparse.c (CVE-2022-22823)
* expat: Integer overflow in defineAttribute in xmlparse.c (CVE-2022-22824)
* expat: Integer overflow in lookup in xmlparse.c (CVE-2022-22825)
* expat: Integer overflow in nextScaffoldPart in xmlparse.c (CVE-2022-22826)
* expat: Integer overflow in storeAtts in xmlparse.c (CVE-2022-22827)
* expat: Integer overflow in function XML_GetBuffer (CVE-2022-23852)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVE-2021-45960
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
CVE-2021-46143
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
CVE-2022-22822
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22823
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22824
defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22825
lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22826
nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22827
storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-23852
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
CVE-2022-25235
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
CVE-2022-25236
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
CVE-2022-25315
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.