CVE-2021-45960: https://nvd.nist.gov/vuln/detail/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-2022-23852: https://nvd.nist.gov/vuln/detail/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: https://nvd.nist.gov/vuln/detail/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: https://nvd.nist.gov/vuln/detail/CVE-2022-25236
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
Score:
cve_id status cvss2Score av ac au ai
CVE-2021-45960 fixed 9 N L S C
CVE-2022-22822 fixed 7.5 N L N P
CVE-2022-22823 fixed 7.5 N L N P
CVE-2022-22824 fixed 7.5 N L N P
CVE-2022-23852 fixed 7.5 N L N P
CVE-2022-25235 fixed 7.5 N L N P
CVE-2022-25236 fixed 7.5 N L N P
CVE-2022-25315 fixed 7.5 N L N P
This LP tracks the following expat related CVEs:
CVE-2021-45960: https:/ /nvd.nist. gov/vuln/ detail/ 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-2022-22822: https:/ /nvd.nist. gov/vuln/ detail/ CVE-2022- 22822
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22823: https:/ /nvd.nist. gov/vuln/ detail/ CVE-2022- 22823
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22824: https:/ /nvd.nist. gov/vuln/ detail/ CVE-2022- 22824
defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-23852: https:/ /nvd.nist. gov/vuln/ detail/ 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: https:/ /nvd.nist. gov/vuln/ detail/ 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: https:/ /nvd.nist. gov/vuln/ detail/ 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: https:/ /nvd.nist. gov/vuln/ detail/ CVE-2022- 25315
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
Score:
cve_id status cvss2Score av ac au ai
CVE-2021-45960 fixed 9 N L S C
CVE-2022-22822 fixed 7.5 N L N P
CVE-2022-22823 fixed 7.5 N L N P
CVE-2022-22824 fixed 7.5 N L N P
CVE-2022-23852 fixed 7.5 N L N P
CVE-2022-25235 fixed 7.5 N L N P
CVE-2022-25236 fixed 7.5 N L N P
CVE-2022-25315 fixed 7.5 N L N P
References: /access. redhat. com/security/ cve/cve- 2021-45960 /bugzilla. redhat. com/show_ bug.cgi? id=2044451 /access. redhat. com/errata/ RHSA-2022: 1069 /lists. centos. org/pipermail/ centos- announce/ 2022-March/ 073580. html
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