https://bugzilla.redhat.com/show_bug.cgi?id=1997763
Bug ID: 1997763
Summary: CVE-2021-39139 xstream: vulnerable to an arbitrary
code execution attack
Product: Security Response
Hardware: All
OS: Linux
Status: NEW
Component: vulnerability
Keywords: Security
Severity: high
Priority: high
Assignee: security-response-team(a)redhat.com
Reporter: gsuckevi(a)redhat.com
CC: abenaiss(a)redhat.com, aileenc(a)redhat.com,
akoufoud(a)redhat.com, alazarot(a)redhat.com,
almorale(a)redhat.com, anstephe(a)redhat.com,
aos-bugs(a)redhat.com, ataylor(a)redhat.com,
bibryam(a)redhat.com, bmontgom(a)redhat.com,
chazlett(a)redhat.com, drieden(a)redhat.com,
eparis(a)redhat.com, etirelli(a)redhat.com,
extras-orphan(a)fedoraproject.org,
fedoraproject.org(a)bluhm-de.com, ggaughan(a)redhat.com,
gmalinko(a)redhat.com, gvarsami(a)redhat.com,
hbraun(a)redhat.com, ibek(a)redhat.com,
janstey(a)redhat.com,
java-sig-commits(a)lists.fedoraproject.org,
jburrell(a)redhat.com, jcoleman(a)redhat.com,
jnethert(a)redhat.com, jochrist(a)redhat.com,
jokerman(a)redhat.com, jolee(a)redhat.com,
jrokos(a)redhat.com, jross(a)redhat.com,
jschatte(a)redhat.com, jstastny(a)redhat.com,
jwon(a)redhat.com, kconner(a)redhat.com,
krathod(a)redhat.com, kverlaen(a)redhat.com,
ldimaggi(a)redhat.com, lkundrak(a)v3.sk,
mizdebsk(a)redhat.com, mnovotny(a)redhat.com,
nstielau(a)redhat.com, nwallace(a)redhat.com,
pantinor(a)redhat.com, pbhattac(a)redhat.com,
pdelbell(a)redhat.com, pjindal(a)redhat.com,
rrajasek(a)redhat.com, rwagner(a)redhat.com,
sponnaga(a)redhat.com, tcunning(a)redhat.com,
tkirby(a)redhat.com, tzimanyi(a)redhat.com
Target Milestone: ---
Classification: Other
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. A user is only affected if using the version out of the box with
JDK 1.7u21 or below. However, this scenario can be adjusted easily to an
external Xalan that works regardless of the version of the Java runtime. 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-64xx-cq4q-mf44
https://x-stream.github.io/CVE-2021-39139.html
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