CVE-2022-3437
A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal.
Does this matter?
Lower severity and a low EPSS score (3.69%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.69% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122
- Affected
- samba/samba · fedoraproject/fedora
- Source
- secalert@redhat.com
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 Tracking, Third 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 Tracking, Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.