4.8

CVE-2026-96674

alsa-lib through 1.2.16.1 Integer Overflow via Topology File

alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerALSA Project
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Produkt alsa-lib
Default Statusunaffected
Version <= 1.2.16.1
Version 0
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.014
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 4.8 0 0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
disclosure@vulncheck.com 4.4 1.8 2.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

https://github.com/alsa-project/alsa-lib
https://github.com/alsa-project/alsa-lib/pull/527
https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1316-L1326
https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1420-L1430
https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1511-L1521
https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-integer-overflow-via-topology-file