sysstat through 12.2.0 has a double free in check_file_actlst in sa_common.c.
- Published
- Dec 11, 2019
- Updated
- Jun 16, 2026
- EPSS
- 2.6% · 85th percentile
- CWE
- CWE-415
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Report tools
Action score
40
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.6%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| sysstat project | sysstat | cpe:2.3:a:sysstat_project:sysstat |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux16.04
- canonical ubuntu linux18.04
- canonical ubuntu linux19.04
- canonical ubuntu linux19.10
- debian debian linux10.0
- sysstat project sysstatup to 12.2.0 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | sysstat | before 12.0.3-2+deb10u1 | 12.0.3-2+deb10u1 |
| Debian:12 | sysstat | before 12.2.0-2 | 12.2.0-2 |
| openSUSE:Leap 15.1 | sysstat | before 12.0.2-lp151.3.15.1 | 12.0.2-lp151.3.15.1 |
| openSUSE:Tumbleweed | sysstat | before 12.4.3-3.2 | 12.4.3-3.2 |
| SUSE:Linux Enterprise Desktop 12 SP4 | sysstat | before 12.0.2-10.36.1 | 12.0.2-10.36.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP1 | sysstat | before 12.0.2-3.21.18 | 12.0.2-3.21.18 |
Same product
sysstat project: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-19416An issue was discovered in sysstat 12.1.1.32Monitor
- CVE-2023-33204sysstat through 12.7.2 allows a multiplication integer overflow in check_overflow in common.c.31Monitor
- CVE-2022-39377sysstat Incorrect Buffer Size calculation on 32-bit systems results in RCE via buffer overflow31Monitor
- CVE-2019-16167sysstat before 12.1.6 has memory corruption due to an Integer Overflow in remap_struct() in sa_common.c.22Monitor
- CVE-2018-19517An issue was discovered in sysstat 12.1.1.22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:sysstat | 12.2.0-2 · Debian:12 | Package registry (OSV) |
| opensuse:sysstat | 12.0.2-lp151.3.15.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| suse:sysstat | 12.0.2-10.36.1 · SUSE:Linux Enterprise Desktop 12 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-415 · Double FreeCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- lists.debian.org/debian-lts-announce/2022/11/msg00014.html
- security.gentoo.org/glsa/202007-22
- usn.ubuntu.com/4242-1/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.