CVE-2022-3437
MEDIUM severity · CVSS 6.5 · CWE-122
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.samba.org/samba/security/CVE-2022-3437.htmlAdvisory
- http://www.openwall.com/lists/oss-security/2023/02/08/1
- https://access.redhat.com/security/cve/CVE-2022-3437Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2137774Advisory
- 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/