https://bugzilla.redhat.com/show_bug.cgi?id=1995259
Bug ID: 1995259
Summary: CVE-2021-37714 jsoup: Crafted input may cause the
jsoup HTML and XML parser to get stuck
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: psampaio(a)redhat.com
CC: aboyko(a)redhat.com, aileenc(a)redhat.com,
akoufoud(a)redhat.com, alazarot(a)redhat.com,
almorale(a)redhat.com, anstephe(a)redhat.com,
asoldano(a)redhat.com, atangrin(a)redhat.com,
ataylor(a)redhat.com, avibelli(a)redhat.com,
bbaranow(a)redhat.com, bgeorges(a)redhat.com,
bibryam(a)redhat.com, bmaxwell(a)redhat.com,
brian.stansberry(a)redhat.com, cdewolf(a)redhat.com,
chazlett(a)redhat.com, clement.escoffier(a)redhat.com,
dandread(a)redhat.com, darran.lofthouse(a)redhat.com,
dbecker(a)redhat.com, dkreling(a)redhat.com,
dosoudil(a)redhat.com, drieden(a)redhat.com,
eleandro(a)redhat.com, etirelli(a)redhat.com,
fjuma(a)redhat.com, ggaughan(a)redhat.com,
gmalinko(a)redhat.com, gsmet(a)redhat.com,
gvarsami(a)redhat.com, hamadhan(a)redhat.com,
hbraun(a)redhat.com, hhorak(a)redhat.com, ibek(a)redhat.com,
iweiss(a)redhat.com, janstey(a)redhat.com,
jaromir.capik(a)email.cz,
java-maint-sig(a)lists.fedoraproject.org,
java-sig-commits(a)lists.fedoraproject.org,
jcoleman(a)redhat.com, jjoyce(a)redhat.com,
jnethert(a)redhat.com, jochrist(a)redhat.com,
jolee(a)redhat.com, jorton(a)redhat.com,
jpallich(a)redhat.com, jperkins(a)redhat.com,
jrokos(a)redhat.com, jross(a)redhat.com,
jschatte(a)redhat.com, jschluet(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,
kwills(a)redhat.com, ldimaggi(a)redhat.com,
lgao(a)redhat.com, lhh(a)redhat.com, lpeer(a)redhat.com,
lthon(a)redhat.com, mburns(a)redhat.com,
mizdebsk(a)redhat.com, mkolesni(a)redhat.com,
mnovotny(a)redhat.com, msochure(a)redhat.com,
msvehla(a)redhat.com, mszynkie(a)redhat.com,
nwallace(a)redhat.com, pantinor(a)redhat.com,
pdrozd(a)redhat.com, peholase(a)redhat.com,
pgallagh(a)redhat.com, pjindal(a)redhat.com,
pmackay(a)redhat.com, probinso(a)redhat.com,
rguimara(a)redhat.com, rrajasek(a)redhat.com,
rruss(a)redhat.com, rstancel(a)redhat.com,
rsvoboda(a)redhat.com, rwagner(a)redhat.com,
sbiarozk(a)redhat.com, sclewis(a)redhat.com,
scohen(a)redhat.com, sdouglas(a)redhat.com,
slinaber(a)redhat.com, smaestri(a)redhat.com,
sthorger(a)redhat.com, tcunning(a)redhat.com,
tkirby(a)redhat.com, tom.jenkinson(a)redhat.com,
tzimanyi(a)redhat.com, yborgess(a)redhat.com
Target Milestone: ---
Classification: Other
jsoup is a Java library for working with HTML. Those using jsoup versions prior
to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If
the parser is run on user supplied input, an attacker may supply content that
causes the parser to get stuck (loop indefinitely until cancelled), to complete
more slowly than usual, or to throw an unexpected exception. This effect may
support a denial of service attack. The issue is patched in version 1.14.2.
There are a few available workarounds. Users may rate limit input parsing,
limit the size of inputs based on system resources, and/or implement thread
watchdogs to cap and timeout parse runtimes.
References:
https://jsoup.org/news/release-1.14.1
https://jsoup.org/news/release-1.14.2
https://github.com/jhy/jsoup/security/advisories/GHSA-m72m-mhq2-9p6c
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