Is CVE-2019-1000021 in the CISA KEV catalog?

No. CVE-2019-1000021 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-1000021?

CVE-2019-1000021 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-1000021?

CVE-2019-1000021 has an EPSS score of 2.32% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-1000021?

Upgrade slixmpp on debian 11 to 1.4.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-1000021

HIGHEPSS 81th pctl

7.5

CVSS v3

NVD

Description

slixmpp version before commit 7cd73b594e8122dddf847953fcfc85ab4d316416 contains an incorrect Access Control vulnerability in XEP-0223 plugin (Persistent Storage of Private Data via PubSub) options profile, used for the configuration of default access model that can result in all of the contacts of the victim can see private data having been published to a PEP node. This attack appears to be exploitable if the user of this library publishes any private data on PEP, the node isn't configured to be private. This vulnerability appears to have been fixed in commit 7cd73b594e8122dddf847953fcfc85ab4d316416 which is included in slixmpp 1.4.2.

How to fix

Remediation Available

slixmppDebian

Fixed in:1.4.2-1CVE-2019-1000021

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

2.32%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

lab.louiz.org

Exploit1

xmpp.org

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.