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Fencer Vulns
medium 6.5

CVE-2017-8363 json

The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service (heap-based buffer over-r…

published 2017-04-30 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17322

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted audio file.

Patch / fix

  • libsndfile Debian 14, Debian 13, Debian 12 1.0.27-3

debian advisories DEBIAN-CVE-2017-8363

  • libsndfile Ubuntu 14.04 LTS 1.0.25-7ubuntu2.2
  • libsndfile Ubuntu 16.04 LTS 1.0.25-10ubuntu0.16.04.1

ubuntu advisories UBUNTU-CVE-2017-8363

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libsndfile SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +6 more 1.0.25-35.1
  • libsndfile SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 1.0.20-2.18.1

suse advisories SUSE-SU-2017:1367-1SUSE-SU-2017:1236-1

  • libsndfile Alpine 3.24, Alpine 3.23, Alpine 3.22 +19 more 1.0.28-r1

alpine advisories ALPINE-CVE-2017-8363

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libsndfile Arch Linux 1.0.31-1
  • lib32-libsndfile Arch Linux 1.0.31-1

arch linux advisories AVG-1549AVG-1550

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-8363 updated cvss 3.3

libsndfile: Heap buffer over-read in the flac_buffer_copy function

  • Red Hat Enterprise Linux 6 libsndfile Red Hat Enterprise Linux 7 libsndfile, libsndfile-utils
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.33% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.