MEDIUM 6.5 Microsoft
CVE-2022-3437
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.
Microsoft Security Update 2023-Jan: 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.
Affected Products
- azl3 samba 4.18.3-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-3437
- https://nvd.nist.gov/vuln/detail/CVE-2022-3437
This medium severity vulnerability with a CVSS score of 6.5 was published on 2023-01-10 via Microsoft. Affected: azl3 samba 4.18.3-1 on Azure Linux 3.0.
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