CVE-2018-19517

Exp

An issue was discovered in sysstat 12.1.1. The remap_struct function in sa_common.c has an out-of-bounds read during a memset call, as demonstrated by sadf.

Published: 2018-11-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-19517 is rated Exploit Available (55.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.82%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-19517

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-19517

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.27% 0.82% +0.56%
2 2025-11-21 0.14% 0.27% +0.13%
3 2025-11-18 — 0.14% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-19517

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-19517

OS Trackers for CVE-2018-19517

vendor priority summary link
debian low CVE-2018-19517 low priority: Debian including 1 source packages (sysstat), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-19517
redhat low — https://access.redhat.com/security/cve/CVE-2018-19517
suse low CVE-2018-19517 severity low: SUSE including 251 source package names (15.7.20.5.1:sysstat-12.0.2-3.6.12, 2.0.2-4.2.20:sysstat-12.0.2-3.6.12, …), 396 product×package rows across 155 product lines (Container suse/hpc/warewulf4-x86_64/sle-hpc-node, Container suse/sle-micro-rancher/5.2, … (155 product lines)): Known Affected 231, Fixed 159, Known Not Affected 6. https://www.suse.com/security/cve/CVE-2018-19517/
ubuntu low CVE-2018-19517 low priority: Ubuntu including 1 source packages (sysstat), 7 status rows across 7 suites (bionic, cosmic, disco, eoan, trusty, upstream, xenial): not-affected 3, ignored 2, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2018-19517

Affected software / configurations for CVE-2018-19517

Vendor Product Version Raw CPE
sysstat_project sysstat 12.1.1 cpe:2.3:a:sysstat_project:sysstat:12.1.1:*:*:*:*:*:*:*

References for CVE-2018-19517

URL Tags
https://github.com/sysstat/sysstat/issues/199 Exploit Issue Tracking Third Party Advisory
cvelogic Threat Intelligence