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Fencer Vulns
medium 5.5

CVE-2017-6888 json

An error in the "read_metadata_vorbiscomment_()" function (src/libFLAC/stream_decoder.c) in FLAC version 1.3.2 can be exploited to cause a…

published 2018-04-25 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15942

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

An error in the "read_metadata_vorbiscomment_()" function (src/libFLAC/stream_decoder.c) in FLAC version 1.3.2 can be exploited to cause a memory leak via a specially crafted FLAC file.

Patch / fix

  • flac Debian 14, Debian 13, Debian 12 1.3.2-2

debian advisories DEBIAN-CVE-2017-6888

  • flac Ubuntu 18.04 LTS 1.3.2-1ubuntu0.1
  • flac Ubuntu Pro 14.04 LTS 1.3.0-2ubuntu0.14.04.1+esm1
  • flac Ubuntu Pro 16.04 LTS 1.3.1-4ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2017-6888

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

  • flac SLE Module for Basesystem 15 1.3.2-3.3.20

suse advisories SUSE-SU-2019:0920-1

  • flac openSUSE Tumbleweed 1.3.3-1.9
  • flac openSUSE Leap 15.0 1.3.2-lp150.2.3.1

opensuse advisories openSUSE-SU-2024:10760-1openSUSE-SU-2019:1225-1

  • flac Alpine 3.24, Alpine 3.23, Alpine 3.22 +14 more 1.3.2-r2

alpine advisories ALPINE-CVE-2017-6888

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

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-2017-6888 updated cvss 4.3

flac: Memory leak in src/libFLAC/stream_decoder.c:read_metadata_vorbiscomment_()

  • Red Hat Enterprise Linux 5 flac Red Hat Enterprise Linux 6 flac Red Hat Enterprise Linux 7 flac, flac-libs Red Hat Enterprise Linux 8 flac, flac-libs
    not affected: vulnerable code not present

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

1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/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

Affected products

  • FLAC FLAC

Classification

Weakness
  • CWE-772 Missing Release of Resource after Effective Lifetime

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.