ALPINE-CVE-2026-31884
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-31884
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-31884.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-31884
- Upstream
- Published
- 2026-03-13T19:54:37Z
- Modified
- 2026-11-03T06:33:02Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, division by zero in MS-ADPCM and IMA-ADPCM decoders when nBlockAlign is 0, leading to a crash. In libfreerdp/codec/dsp.c, both ADPCM decoders use size % block_size where block_size = context->common.format.nBlockAlign. The nBlockAlign value comes from the Server Audio Formats PDU on the RDPSND channel. The value 0 is not validated anywhere before reaching the decoder. When nBlockAlign = 0, the modulo operation causes a SIGFPE (floating point exception) crash. This vulnerability is fixed in 3.24.0.
- References
Affected packages
Alpine:v3.23 / freerdp
Package
- Name
- freerdp
- Purl
- pkg:apk/alpine/freerdp?arch=source