CVE-2019-25036
unbound: assertion failure and denial of service in synth_cname
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. 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
** EN DISPUTA ** Unbound versiones anteriores a 1.9.5, permite un error de aserción y denegación de servicio en la función synth_cname. NOTA: El proveedor niega que esto sea una vulnerabilidad. Aunque el código puede ser vulnerable, una instalación de Unbound en funcionamiento no puede ser explotada de forma remota o local
A flaw was found in unbound. A reachable assertion in the synth_cname function can be triggered by sending invalid packets to the server. If asserts are disabled during compilation, this issue might lead to an out-of-bounds write in dname_pkt_copy function. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.
Red Hat Advanced Cluster Management for Kubernetes 2.2.4 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include denial of service and integer overflow vulnerabilities.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-04-27 CVE Reserved
- 2021-04-27 CVE Published
- 2024-08-05 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-617: Reachable Assertion
- CWE-787: Out-of-bounds Write
CAPEC
References (5)
URL | Tag | Source |
---|---|---|
https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html | Mailing List |
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https://security.netapp.com/advisory/ntap-20210507-0007 | Third Party Advisory |
|
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results | 2024-05-17 |
URL | Date | SRC |
---|---|---|
https://access.redhat.com/security/cve/CVE-2019-25036 | 2022-02-22 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1954782 | 2022-02-22 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Nlnetlabs Search vendor "Nlnetlabs" | Unbound Search vendor "Nlnetlabs" for product "Unbound" | < 1.9.5 Search vendor "Nlnetlabs" for product "Unbound" and version " < 1.9.5" | - |
Affected
| ||||||
Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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