Veracode Vulnerability DatabaseVERACODE:6167Denial Of Service (DoS)
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
libkrb5.so is vulnerable to denial of service (DoS) through buffer overflow attacks. The vulnerability exists in the get_matching_data() function of krb5 that includes certauth plugin, and subsequently allowing both the CA certificate and the user’s certificate to have long subjects, causing a denial of service (DoS) attack. Remarks: This attack requires a validated certificate with a long subject and issuer, and a pkinit_cert_match string attribute that matches a principal in the database.
| CPE | Name | Operator | Version |
|---|---|---|---|
| libkrb5.so | eq | 3.3 |
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P