CVE-2021-36222
ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.3%, higher than 95% of all known CVEs. Patch or mitigate before the next change window.
Description
ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 10.28% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- mit/kerberos 5 · debian/debian linux · netapp/active iq unified manager · netapp/oncommand insight · netapp/oncommand workflow automation · netapp/snapcenter · oracle/mysql server
- Source
- cve@mitre.org
References
- https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562Patch, Third Party Advisory
- https://github.com/krb5/krb5/releasesRelease Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0007/Third Party Advisory
- https://web.mit.edu/kerberos/advisories/Not Applicable
- https://www.debian.org/security/2021/dsa-4944Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
- https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562Patch, Third Party Advisory
- https://github.com/krb5/krb5/releasesRelease Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0007/Third Party Advisory
- https://web.mit.edu/kerberos/advisories/Not Applicable
- https://www.debian.org/security/2021/dsa-4944Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.