https://bugzilla.redhat.com/show_bug.cgi?id=1942635
Bug ID: 1942635
Summary: CVE-2021-21349 XStream: SSRF can be activated
unmarshalling with XStream to access data streams from
an arbitrary URL referencing a resource in an intranet
or the local host
Product: Security Response
Hardware: All
OS: Linux
Status: NEW
Component: vulnerability
Keywords: Security
Severity: medium
Priority: medium
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, dchen(a)redhat.com,
drieden(a)redhat.com, eparis(a)redhat.com,
etirelli(a)redhat.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-maint(a)redhat.com,
java-sig-commits(a)lists.fedoraproject.org,
jburrell(a)redhat.com, jcoleman(a)redhat.com,
jochrist(a)redhat.com, jokerman(a)redhat.com,
jolee(a)redhat.com, jross(a)redhat.com,
jschatte(a)redhat.com, jstastny(a)redhat.com,
jwon(a)redhat.com, kaycoth(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, pjindal(a)redhat.com,
rrajasek(a)redhat.com, rsynek(a)redhat.com,
rwagner(a)redhat.com, sdaley(a)redhat.com,
sponnaga(a)redhat.com, tcunning(a)redhat.com,
tkirby(a)redhat.com, vbobade(a)redhat.com
Target Milestone: ---
Classification: Other
XStream is a Java library to serialize objects to XML and back again. In
XStream before version 1.4.16, there is a vulnerability which may allow a
remote attacker to request data from internal resources that are not publicly
available 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. If you rely on XStream's
default blacklist of the Security Framework, you will have to use at least
version 1.4.16.
References:
https://github.com/x-stream/xstream/security/advisories/GHSA-f6hm-88x3-mfjv
https://x-stream.github.io/CVE-2021-21349.html
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