CVE-2010-0433
openssl: crash caused by a missing krb5_sname_to_principal() return value check
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.
La funcion kssl_keytab_is_available en ssl/kssl.c en OpenSSL before v0.9.8n, cuando Kerberos esta activo pero los ficheros de configuracion de Kerberos no pueden ser abiertos, no comprueba adecuadamente cierto valor de retorno, lo que permite a atacantes remotos producir una denegacion de servicio (desreferencia a puntero nulo y caida de demonio) a traves de la negociacion del cifrado SSL, lo que se demuestra mediante la instalacion chroot de Dovecot o stunnel sin los ficheros de configuracion de Kerberos dentro de chroot.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2010-01-27 CVE Reserved
- 2010-03-05 CVE Published
- 2024-08-07 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (32)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | <= 0.9.8m Search vendor "Openssl" for product "Openssl" and version " <= 0.9.8m" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8 Search vendor "Openssl" for product "Openssl" and version "0.9.8" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8a Search vendor "Openssl" for product "Openssl" and version "0.9.8a" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8b Search vendor "Openssl" for product "Openssl" and version "0.9.8b" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8c Search vendor "Openssl" for product "Openssl" and version "0.9.8c" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8d Search vendor "Openssl" for product "Openssl" and version "0.9.8d" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8e Search vendor "Openssl" for product "Openssl" and version "0.9.8e" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8f Search vendor "Openssl" for product "Openssl" and version "0.9.8f" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8g Search vendor "Openssl" for product "Openssl" and version "0.9.8g" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8h Search vendor "Openssl" for product "Openssl" and version "0.9.8h" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8i Search vendor "Openssl" for product "Openssl" and version "0.9.8i" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8j Search vendor "Openssl" for product "Openssl" and version "0.9.8j" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8k Search vendor "Openssl" for product "Openssl" and version "0.9.8k" | - |
Affected
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| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 0.9.8l Search vendor "Openssl" for product "Openssl" and version "0.9.8l" | - |
Affected
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