// For flags

CVE-2015-8629

krb5: xdr_nullstring() doesn't check for terminating null character

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The xdr_nullstring function in lib/kadm5/kadm_rpc_xdr.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 does not verify whether '\0' characters exist as expected, which allows remote authenticated users to obtain sensitive information or cause a denial of service (out-of-bounds read) via a crafted string.

La función xdr_nullstring en lib/kadm5/kadm_rpc_xdr.c en kadmind in MIT Kerberos 5 (también conocido como krb5) en versiones anteriores a 1.13.4 y 1.14.x en versiones anteriores a 1.14.1 no verifica si existen caracteres '\0' según lo esperado, lo que permite a usuarios remotos autenticados obtener información sensible o causar una denegación de servicio (lectura fuera de rango) a través de una cadena manipulada.

An out-of-bounds read flaw was found in the kadmind service of MIT Kerberos. An authenticated attacker could send a maliciously crafted message to force kadmind to read beyond the end of allocated memory, and write the memory contents to the KDC database if the attacker has write permission, leading to information disclosure.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
High
Authentication
Single
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-12-23 CVE Reserved
  • 2016-02-05 CVE Published
  • 2023-04-06 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-125: Out-of-bounds Read
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mit
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Kerberos 5
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< 1.13.4
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-
Affected
Mit
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Kerberos 5
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>= 1.14 < 1.14.1
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-
Affected
Oracle
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Linux
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6
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-
Affected
Oracle
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Linux
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7
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-
Affected
Oracle
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Solaris
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10
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-
Affected
Oracle
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Solaris
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11.3
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-
Affected
Debian
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Debian Linux
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7.0
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-
Affected
Debian
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Debian Linux
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8.0
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-
Affected
Opensuse
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Leap
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42.1
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-
Affected
Opensuse
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Opensuse
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13.2
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-
Affected
Redhat
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Enterprise Linux Desktop
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6.0
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-
Affected
Redhat
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Enterprise Linux Desktop
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7.0
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-
Affected
Redhat
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Enterprise Linux Eus
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6.7
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Affected
Redhat
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Enterprise Linux Eus
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7.2
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Affected
Redhat
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Enterprise Linux Eus
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7.3
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Affected
Redhat
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Enterprise Linux Eus
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7.4
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Affected
Redhat
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Enterprise Linux Eus
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7.5
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Affected
Redhat
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Enterprise Linux Eus
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7.6
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Affected
Redhat
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Enterprise Linux Eus
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7.7
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Affected
Redhat
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Enterprise Linux Server
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6.0
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Affected
Redhat
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Enterprise Linux Server
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7.0
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Affected
Redhat
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Enterprise Linux Server Aus
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7.2
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Affected
Redhat
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Enterprise Linux Server Aus
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7.3
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Affected
Redhat
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Enterprise Linux Server Aus
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7.4
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Affected
Redhat
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Enterprise Linux Server Aus
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7.6
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Affected
Redhat
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Enterprise Linux Server Aus
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7.7
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Affected
Redhat
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Enterprise Linux Server Tus
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7.2
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Affected
Redhat
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Enterprise Linux Server Tus
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7.3
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Affected
Redhat
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Enterprise Linux Server Tus
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7.6
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Affected
Redhat
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Enterprise Linux Server Tus
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7.7
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Affected
Redhat
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Enterprise Linux Workstation
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6.0
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Affected
Redhat
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Enterprise Linux Workstation
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7.0
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Affected