Vulnerability Details : CVE-2019-19344
There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.
Vulnerability category: Memory Corruption
Products affected by CVE-2019-19344
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:synology:diskstation_manager:6.2:*:*:*:*:*:*:*
- cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:*
- cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:*
- cpe:2.3:a:synology:directory_server:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-19344
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-19344
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
Red Hat, Inc. | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2019-19344
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2019-19344
-
https://www.synology.com/security/advisory/Synology_SA_20_01
Synology Inc.Third Party Advisory
-
https://security.gentoo.org/glsa/202003-52
Samba: Multiple vulnerabilities (GLSA 202003-52) — Gentoo security
-
https://usn.ubuntu.com/4244-1/
USN-4244-1: Samba vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
[SECURITY] Fedora 31 Update: samba-4.11.6-0.fc31 - package-announce - Fedora Mailing-Lists
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344
1791204 – (CVE-2019-19344) CVE-2019-19344 samba: Use after free during DNS zone scavenging in Samba AD DCIssue Tracking;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
[SECURITY] Fedora 30 Update: samba-4.10.13-0.fc30 - package-announce - Fedora Mailing-Lists
-
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
[security-announce] openSUSE-SU-2020:0122-1: moderate: Security update fThird Party Advisory
-
https://www.samba.org/samba/security/CVE-2019-19344.html
Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
[SECURITY] [DLA 3563-1] samba security update
-
https://security.netapp.com/advisory/ntap-20200122-0001/
January 2020 Samba Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
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