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OpenAdvisories
Medium · 6.6 CVE-2026-73583 EUVD-2026-57828GHSA-gm2c-cxm9-724m

Sblim-sfcb: unsafe deserialization in sblim-sfcb provider-manager ipc allows out-of-bounds memory access via malformed operationhdr

Published Aug 13, 2026 · Updated Nov 5, 2026 · Assigned by redhat

Description

A flaw was found in sblim-sfcb. A local attacker with access to the system can exploit an unsafe deserialization vulnerability in the provider-manager's inter-process communication (IPC) message parsing. By sending a specially crafted message, the attacker can cause out-of-bounds memory access, leading to the termination of the provider-manager process and a denial of service. This could also potentially result in limited unintended information disclosure.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Enterprise Linux 10 — —
Red Hat Red Hat Enterprise Linux 6 — —
Red Hat Red Hat Enterprise Linux 7 — —
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 9 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS sblim-sfcb No fix yet —
Ubuntu 24.04 LTS sblim-sfcb No fix yet —
Ubuntu 22.04 LTS sblim-sfcb No fix yet —
Ubuntu 20.04 LTS sblim-sfcb No fix yet —
Ubuntu 18.04 LTS sblim-sfcb No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS sblim-sfcb No fix yet —

References