Summary
Expat is a C library for parsing XML documents. The mingw-expat packages provide a port of the Expat library for MinGW.
The following packages have been upgraded to a later upstream version: mingw-expat (2.4.8). (BZ#2057023, BZ#2057037, BZ#2057127)
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: Stack exhaustion in doctype parsing (CVE-2022-25313)
* expat: Integer overflow in copyString() (CVE-2022-25314)
* expat: Integer overflow in the doProlog function (CVE-2022-23990)
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.
Additional Changes:
For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | mingw32-expat | 2.4.8-1.el8 |
| AlmaLinux · 8 | mingw64-expat | 2.4.8-1.el8 |
Vulnerabilities 6
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Critical 9.8CVE-2022-25235 Public exploit
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a U…
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Critical 9.8
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespac…
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Critical 9.8CVE-2022-25315 Public exploit
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
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High 7.5CVE-2022-23990 Public exploit
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
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High 7.5CVE-2022-25314 Public exploit
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
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Medium 6.5CVE-2022-25313 Public exploit
In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth…
References
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report
https://access.redhat.com/security/cve/CVE-2022-23990
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report
https://access.redhat.com/security/cve/CVE-2022-25235
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report
https://access.redhat.com/security/cve/CVE-2022-25236
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report
https://access.redhat.com/security/cve/CVE-2022-25313
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report
https://access.redhat.com/security/cve/CVE-2022-25314
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report
https://access.redhat.com/security/cve/CVE-2022-25315
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report
https://bugzilla.redhat.com/2048356
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report
https://bugzilla.redhat.com/2056350
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report
https://bugzilla.redhat.com/2056354
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report
https://bugzilla.redhat.com/2056363
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report
https://bugzilla.redhat.com/2056366
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report
https://bugzilla.redhat.com/2056370
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advisory
https://errata.almalinux.org/8/ALSA-2022-7811.html