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
7.5 High
CVSS2
Access Vector
NETWORK
Access 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
0.025 Low
EPSS
Percentile
89.9%
Issue Overview:
A flaw was found in expat. Passing malformed 2- and 3-byte UTF-8 sequences (for example, from start tag names) to the XML processing application on top of expat can lead to arbitrary code execution. This issue is dependent on how invalid UTF-8 is handled inside the XML processor. (CVE-2022-25235)
A flaw was found in expat. Passing one or more namespace separator characters in the “xmlns[:prefix]” attribute values made expat send malformed tag names to the XML processor on top of expat. This issue causes arbitrary code execution depending on how unexpected cases are handled inside the XML processor. (CVE-2022-25236)
Affected Packages:
expat
Issue Correction:
Run yum update expat to update your system.
New Packages:
i686:
expat-devel-2.1.0-12.27.amzn1.i686
expat-debuginfo-2.1.0-12.27.amzn1.i686
expat-2.1.0-12.27.amzn1.i686
src:
expat-2.1.0-12.27.amzn1.src
x86_64:
expat-devel-2.1.0-12.27.amzn1.x86_64
expat-2.1.0-12.27.amzn1.x86_64
expat-debuginfo-2.1.0-12.27.amzn1.x86_64
Red Hat: CVE-2022-25235, CVE-2022-25236
Mitre: CVE-2022-25235, CVE-2022-25236
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | expat-devel | < 2.1.0-12.27.amzn1 | expat-devel-2.1.0-12.27.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | expat-debuginfo | < 2.1.0-12.27.amzn1 | expat-debuginfo-2.1.0-12.27.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | expat | < 2.1.0-12.27.amzn1 | expat-2.1.0-12.27.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | expat-devel | < 2.1.0-12.27.amzn1 | expat-devel-2.1.0-12.27.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | expat | < 2.1.0-12.27.amzn1 | expat-2.1.0-12.27.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | expat-debuginfo | < 2.1.0-12.27.amzn1 | expat-debuginfo-2.1.0-12.27.amzn1.x86_64.rpm |
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
7.5 High
CVSS2
Access Vector
NETWORK
Access 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
0.025 Low
EPSS
Percentile
89.9%