Vulnerability Description
A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | >= 4.0.0, < 4.15.11 |
| Fedoraproject | Fedora | 36 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2023/02/08/1
- https://access.redhat.com/security/cve/CVE-2022-3437Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2137774Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
- https://security.gentoo.org/glsa/202309-06
- https://security.gentoo.org/glsa/202310-06
- https://security.netapp.com/advisory/ntap-20230216-0008/
- https://www.samba.org/samba/security/CVE-2022-3437.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2023/02/08/1
- https://access.redhat.com/security/cve/CVE-2022-3437Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2137774Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
- https://security.gentoo.org/glsa/202309-06
- https://security.gentoo.org/glsa/202310-06
- https://security.netapp.com/advisory/ntap-20230216-0008/
FAQ
What is CVE-2022-3437?
CVE-2022-3437 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI lib...
How severe is CVE-2022-3437?
CVE-2022-3437 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-3437?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Samba, Fedoraproject Fedora.