The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - ALSA: pcm: fix use-after-free on linked stream runtime in snd_pcm_drain() In the drain loop, the local     variable 'runtime' is reassigned to a linked stream's runtime (runtime = s->runtime at line 2157). After     releasing the stream lock at line 2169, the code accesses runtime->no_period_wakeup, runtime->rate, and     runtime->buffer_size (lines 2170-2178)  all referencing the linked stream's runtime without any lock or     refcount protecting its lifetime. A concurrent close() on the linked stream's fd triggers     snd_pcm_release_substream()  snd_pcm_drop()  pcm_release_private()  snd_pcm_unlink()     snd_pcm_detach_substream()  kfree(runtime). No synchronization prevents kfree(runtime) from completing     while the drain path dereferences the stale pointer. Fix by caching the needed runtime fields     (no_period_wakeup, rate, buffer_size) into local variables while still holding the stream lock, and using     the cached values after the lock is released. (CVE-2026-43437)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-43437

high Nessus Plugin ID 313378

Version 1.7

Version 1.5

Version 1.3

Version 1.2

Version 1.1

Version 1.7 May 30, 2026, 6:41 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605300641
Version 1.5 May 25, 2026, 10:30 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605252230
Version 1.3 May 20, 2026, 10:33 PM CVSS metrics ("CVSSv2 score" set to 6.6) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202605202233
Version 1.2 May 9, 2026, 8:04 AM CVSS metrics ("CVSSv2 score" set to 6.1) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C") CVSS metrics ("CVSSv3 score" set to 7.8) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H") CVSSv2 severity (based on CVE-2026-43437, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Plugin Feed: 202605090804
Version 1.1 May 9, 2026, 2:20 AM New Plugin Feed: 202605090220