CVE-2026-43958
Discovered by AISLEPUBLISHEDCWE-121
Description
A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data.
CVSS Base Scores
CVSS v3.1(Primary)
7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:1.8.0-21.el10_2 | unaffected |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:1.8.0-20.el10_0.1 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.7.0-17.el8_10 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.7.2-22.el9_8 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:1.7.2-21.el9_2.1 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 0:1.7.2-21.el9_4.1 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:1.7.2-21.el9_6.1 | unaffected |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
Credits
- Red Hat would like to thank AISLE Research for reporting this issue.
References
- https://access.redhat.com/errata/RHSA-2026:33731
- https://access.redhat.com/errata/RHSA-2026:34155
- https://access.redhat.com/errata/RHSA-2026:34156
- https://access.redhat.com/errata/RHSA-2026:68702
- https://access.redhat.com/errata/RHSA-2026:71600
- https://access.redhat.com/errata/RHSA-2026:72277
- https://access.redhat.com/errata/RHSA-2026:72278
- https://access.redhat.com/security/cve/CVE-2026-43958
- https://bugzilla.redhat.com/show_bug.cgi?id=2460932

