MIT Kerberos 5-1.14 xdr_nullstring memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

A vulnerability was found in MIT Kerberos 5-1.14 (Network Authentication Software). It has been rated as problematic. This issue affects the function xdr_nullstring. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, and availability.

The weakness was shared 02/03/2016 as confirmed git commit (GIT Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2015-8629 since 12/23/2015. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 88886 (Debian DLA-423-1 : krb5 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 296001 (Solaris 11.3 Support Repository Update (SRU) 8.7.0 Missing).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (110395), Tenable (88886), SecurityFocus (BID 82801†) and Vulnerability Center (SBV-57265†). The entries VDB-79059, VDB-79061, VDB-80817 and VDB-81385 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.4

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.1
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 88886
Nessus Name: Debian DLA-423-1 : krb5 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703466
OpenVAS Name: Debian Security Advisory DSA 3466-1 (krb5 - security update)
OpenVAS File: 🔍
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Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
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Patch: github.com

Timelineinfo

12/23/2015 🔍
01/08/2016 +16 days 🔍
02/03/2016 +26 days 🔍
02/08/2016 +5 days 🔍
02/12/2016 +4 days 🔍
02/22/2016 +10 days 🔍
02/23/2016 +1 days 🔍
03/14/2016 +20 days 🔍
07/07/2022 +2306 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: df17a1224a3406f57477bcd372c61e04c0e5a5bb
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8629 (🔍)
X-Force: 110395 - MIT Kerberos xdr_nullstring() function information disclosure
SecurityFocus: 82801
SecurityTracker: 1034914
Vulnerability Center: 57265 - Kerberos 5 Remote DoS or Information Disclosure via a Crafted String, Low

See also: 🔍

Entryinfo

Created: 02/08/2016 09:29 AM
Updated: 07/07/2022 08:53 AM
Changes: 02/08/2016 09:29 AM (76), 01/31/2019 01:36 PM (10), 07/07/2022 08:49 AM (7), 07/07/2022 08:53 AM (1)
Complete: 🔍
Cache ID: 18:78F:40

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