CVE-2022-42898
CVSS v3
8.8
HIGH
EPSS Score
8.9 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Technical details
- Published
- 2022-12-25
Frequently asked questions
What is CVE-2022-42898?
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Is CVE-2022-42898 actively exploited?
Active exploitation of CVE-2022-42898 has not been confirmed. The EPSS score is 8.9%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2022-42898?
CVE-2022-42898 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2022-42898 affecting your environment?
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