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GoogleOSV:ALSA-2022:7811

HistoryNov 08, 2022 - 12:00 a.m.

Important: mingw-expat security update

2022-11-0800:00:00

Google

osv.dev

expat library

mingw-expat

security update

arbitrary code execution

cve-2022-25235

cve-2022-25236

cve-2022-25315

cve-2022-25313

cve-2022-25314

cve-2022-23990

integer overflow

stack exhaustion

xml parsing

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.1 High

AI Score

Confidence

High

0.035 Low

EPSS

Percentile

91.6%

JSON

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.