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osvGoogleOSV:GHSA-QPFQ-PH7R-QV6F
HistoryMar 22, 2021 - 11:29 p.m.

XStream is vulnerable to an Arbitrary Code Execution attack

2021-03-2223:29:00
Google
osv.dev
16
xstream
arbitrary code execution
remote attack
input stream
security framework
whitelist
cve-2021-21347
threedr3am

EPSS

0.018

Percentile

88.3%

JSON

Impact

The vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream’s security framework with a whitelist limited to the minimal required types.

Patches

If you rely on XStream’s default blacklist of the Security Framework, you will have to use at least version 1.4.16.

Workarounds

See workarounds for the different versions covering all CVEs.

References

See full information about the nature of the vulnerability and the steps to reproduce it in XStream’s documentation for CVE-2021-21347.

Credits

The vulnerability was discovered and reported by threedr3am.

For more information

If you have any questions or comments about this advisory:

References

Related

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EPSS

0.018

Percentile

88.3%

JSON
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