Huawei EulerOS: Security Advisory for expat (EulerOS-SA-2019-2256)

Published: 2020-01-23 12:43:04
CVE Author: NIST National Vulnerability Database (NVD)

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Summary:
The remote host is missing an update for the Huawei EulerOS 'expat' Linux Distribution Package(s) announced via the EulerOS-SA-2019-2256 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox 50.(CVE-2016-9063) In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early, a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.(CVE-2019-15903) XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.(CVE-2017-9233)

Affected Versions:
'expat' Linux Distribution Package(s) on Huawei EulerOS V2.0SP3.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2016-9063
https://nvd.nist.gov/vuln/detail/CVE-2017-9233
https://nvd.nist.gov/vuln/detail/CVE-2019-15903

References:

https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2256

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Severity
High
CVSS Score
7.5

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