QID 352367

Date Published: 2021-05-27

QID 352367: Amazon Linux Security Advisory for xstream: ALAS2-2021-1645

<DIV ID="issue_overview"> a flaw was found in xstream.
A remote attacker may be able to load and execute arbitrary code from a remote host only by manipulating the processed input stream.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
cve-2021-21344 ) a flaw was found in xstream.
A remote attacker, who has sufficient rights, can execute commands of the host by manipulating the processed input stream.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
cve-2021-21345 ) a flaw was found in xstream.
A remote attacker can load and execute arbitrary code from a remote host by manipulating the processed input stream.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
cve-2021-21346 ) a flaw was found in xstream.
A remote attacker may be able to load and execute arbitrary code from a remote host only by manipulating the processed input stream.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
cve-2021-21347 ) a flaw was found in xstream.
A remote attacker may be able to execute arbitrary code only by manipulating the processed input stream.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
cve-2021-21350 ) </DIV>

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.

  • CVSS V3 rated as Critical - 9.9 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2021-1645 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352367

    CVE-2021-21346 | CVE-2021-21344 | CVE-2021-21350 | CVE-2021-21347 | CVE-2021-21345 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2021-1645 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2021-1645.html
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