Bug 1997801 (CVE-2021-39154) - CVE-2021-39154 xstream: Arbitrary code execution via unsafe deserialization of javax.swing.UIDefaults$ProxyLazyValue
Summary: CVE-2021-39154 xstream: Arbitrary code execution via unsafe deserialization o...
Keywords:
Status: NEW
Alias: CVE-2021-39154
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1998646 1997802
Blocks: 1997804
TreeView+ depends on / blocked
 
Reported: 2021-08-25 20:01 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-10-20 21:27 UTC (History)
52 users (show)

Fixed In Version: xstream 1.4.18
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in xstream, a simple library used to serialize objects to XML and back again. This flaw allows a remote attacker to load and execute arbitrary code from a remote host by manipulating the processed input stream. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
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Description Guilherme de Almeida Suckevicz 2021-08-25 20:01:41 UTC
XStream is a simple library to serialize objects to XML and back again. In affected versions this 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. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

References:
https://github.com/x-stream/xstream/security/advisories/GHSA-6w62-hx7r-mw68
https://x-stream.github.io/CVE-2021-39154.html

Comment 1 Guilherme de Almeida Suckevicz 2021-08-25 20:02:08 UTC
Created xstream tracking bugs for this issue:

Affects: fedora-all [bug 1997802]


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