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AmazonALAS-2022-1655HistoryDec 01, 2022 - 5:34 p.m.
Important: expat
2022-12-0117:34:00
alas.aws.amazon.com
12
expat
use-after-free
xml_externalentityparsercreate
cve-2022-43680
red hat
mitre
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.004 Low
EPSS
Percentile
74.1%
Issue Overview:
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations. (CVE-2022-43680)
Affected Packages:
expat
Issue Correction:
Run yum update expat to update your system.
New Packages:
i686:
expat-debuginfo-2.1.0-15.33.amzn1.i686
expat-devel-2.1.0-15.33.amzn1.i686
expat-2.1.0-15.33.amzn1.i686
src:
expat-2.1.0-15.33.amzn1.src
x86_64:
expat-devel-2.1.0-15.33.amzn1.x86_64
expat-2.1.0-15.33.amzn1.x86_64
expat-debuginfo-2.1.0-15.33.amzn1.x86_64
Additional References
Red Hat: CVE-2022-43680
Mitre: CVE-2022-43680
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | i686 | expat-debuginfo | < 2.1.0-15.33.amzn1 | expat-debuginfo-2.1.0-15.33.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | expat-devel | < 2.1.0-15.33.amzn1 | expat-devel-2.1.0-15.33.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | expat | < 2.1.0-15.33.amzn1 | expat-2.1.0-15.33.amzn1.i686.rpm |
| Amazon Linux | 1 | x86_64 | expat-devel | < 2.1.0-15.33.amzn1 | expat-devel-2.1.0-15.33.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | expat | < 2.1.0-15.33.amzn1 | expat-2.1.0-15.33.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | expat-debuginfo | < 2.1.0-15.33.amzn1 | expat-debuginfo-2.1.0-15.33.amzn1.x86_64.rpm |
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7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.004 Low
EPSS
Percentile
74.1%
Related for ALAS-2022-1655