Vulnerability Details : CVE-2017-9217
systemd-resolved through 233 allows remote attackers to cause a denial of service (daemon crash) via a crafted DNS response with an empty question section.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-9217
Probability of exploitation activity in the next 30 days: 0.71%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-9217
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-9217
-
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-9217
-
https://github.com/systemd/systemd/commit/a924f43f30f9c4acaf70618dd2a055f8b0f166be
resolved: bugfix of null pointer p->question dereferencing (#6020) · systemd/systemd@a924f43 · GitHubIssue Tracking;Patch;Third Party Advisory
-
https://github.com/systemd/systemd/pull/5998
Bugfix of null pointer p->question dereferencing by KulykIevgen · Pull Request #5998 · systemd/systemd · GitHubIssue Tracking;Patch;Third Party Advisory
-
http://www.securityfocus.com/bid/98677
systemd-resolved 'resolved-dns-packet.c' Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://launchpad.net/bugs/1621396
Bug #1621396 “systemd-resolved crashed with SIGSEGV in dns_packe...” : Bugs : systemd package : UbuntuIssue Tracking;Third Party Advisory
Products affected by CVE-2017-9217
- cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*