CVE-2023-29483
dnspython: denial of service in stub resolver
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.
eventlet anterior a 0.35.2, como se usa en dnspython anterior a 2.6.0, permite a atacantes remotos interferir con la resolución de nombres DNS enviando rápidamente un paquete no válido desde la dirección IP y el puerto de origen esperados, también conocido como un ataque "TuDoor". En otras palabras, dnspython no tiene el comportamiento preferido en el que procedería el algoritmo de resolución de nombres DNS, dentro de la ventana de tiempo completa, para esperar un paquete válido. NOTA: dnspython 2.6.0 no se puede utilizar por un motivo diferente al que se abordó en 2.6.1.
The dnspython stub resolver is vulnerable to a denial of service (DoS) risk if an attacker sends a malicious response forged with the correct address and port before a legitimate one arrives on the UDP port used by dnspython for the query. In such cases, dnspython could either switch to another resolver or abandon the query altogether, potentially leading to service denial for that resolution.
CVSS Scores
SSVC
- Decision:Track*
Timeline
- 2023-04-07 CVE Reserved
- 2024-04-11 CVE Published
- 2024-04-12 EPSS Updated
- 2024-08-27 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-292: DEPRECATED: Trusting Self-reported DNS Name
- CWE-696: Incorrect Behavior Order
CAPEC
References (12)
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Affected Vendors, Products, and Versions
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Centos Search vendor "Centos" | Centos Search vendor "Centos" for product "Centos" | * | - |
Affected
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Eventlet Search vendor "Eventlet" | Eventlet Search vendor "Eventlet" for product "Eventlet" | * | - |
Affected
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Oracle Search vendor "Oracle" | Exadata Dbserver Search vendor "Oracle" for product "Exadata Dbserver" | * | - |
Affected
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Redhat Search vendor "Redhat" | Openshift Ironic Search vendor "Redhat" for product "Openshift Ironic" | * | - |
Affected
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Amazon Search vendor "Amazon" | Linux Search vendor "Amazon" for product "Linux" | * | - |
Affected
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Centos Search vendor "Centos" | Centos Search vendor "Centos" for product "Centos" | * | - |
Affected
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Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | * | - |
Affected
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Huawei Search vendor "Huawei" | Euleros Search vendor "Huawei" for product "Euleros" | * | - |
Affected
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Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | * | - |
Affected
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Oracle Search vendor "Oracle" | Linux Search vendor "Oracle" for product "Linux" | * | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | * | - |
Affected
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Rocky Search vendor "Rocky" | Linux Search vendor "Rocky" for product "Linux" | * | - |
Affected
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Suse Search vendor "Suse" | Packagehub Search vendor "Suse" for product "Packagehub" | * | - |
Affected
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Suse Search vendor "Suse" | Sle-module-basesystem Search vendor "Suse" for product "Sle-module-basesystem" | * | - |
Affected
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Suse Search vendor "Suse" | Sle-module-public-cloud Search vendor "Suse" for product "Sle-module-public-cloud" | * | - |
Affected
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Suse Search vendor "Suse" | Sle-module-python3 Search vendor "Suse" for product "Sle-module-python3" | * | - |
Affected
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Suse Search vendor "Suse" | Sle Hpc-espos Search vendor "Suse" for product "Sle Hpc-espos" | * | - |
Affected
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Suse Search vendor "Suse" | Sle Hpc-ltss Search vendor "Suse" for product "Sle Hpc-ltss" | * | - |
Affected
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Suse Search vendor "Suse" | Sle Hpc Search vendor "Suse" for product "Sle Hpc" | * | - |
Affected
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Suse Search vendor "Suse" | Sled Search vendor "Suse" for product "Sled" | * | - |
Affected
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Suse Search vendor "Suse" | Sles-ltss Search vendor "Suse" for product "Sles-ltss" | * | - |
Affected
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Suse Search vendor "Suse" | Sles Search vendor "Suse" for product "Sles" | * | - |
Affected
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Suse Search vendor "Suse" | Sles Sap Search vendor "Suse" for product "Sles Sap" | * | - |
Affected
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Suse Search vendor "Suse" | Suse-manager-proxy Search vendor "Suse" for product "Suse-manager-proxy" | * | - |
Affected
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Suse Search vendor "Suse" | Suse-manager-server Search vendor "Suse" for product "Suse-manager-server" | * | - |
Affected
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