CVE & CISA-KEV Catalog

CVE-2019-25034

CRITICALEPSS 79th pctl
9.8
CVSS v3
NVD

Description

Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited

How to fix

Remediation Available
unboundDebian
Fixed in:1.9.6-1CVE-2019-25034
Fixed in:1.9.6-1CVE-2019-25034
Fixed in:1.9.6-1CVE-2019-25034
Fixed in:1.9.6-1CVE-2019-25034
libunbound2Ubuntu
Fixed in:1.6.7-1ubuntu2.4USN-4938-1
libunbound8Ubuntu
Fixed in:1.9.4-2ubuntu1.2USN-4938-1
unboundUbuntu
Fixed in:1.6.7-1ubuntu2.4USN-4938-1
Fixed in:1.9.4-2ubuntu1.2USN-4938-1

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
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.04%probability of exploitation in 30 days
79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-16040Medium6.5100%-Fix
CVE-2019-11477High7.599%-Fix
CVE-2023-44443High7.894%-Fix
CVE-2014-0569High9.390%--
CVE-2017-3599High7.590%-Fix
CVE-2023-21716Critical9.882%-Fix
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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.