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Fencer Vulns
critical 9.8

CVE-2018-7263 json

The mad_decoder_run() function in decoder.c in Underbit libmad through 0.15.1b allows remote attackers to cause a denial of service (SIGABR…

published 2018-02-20 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18999

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

The mad_decoder_run() function in decoder.c in Underbit libmad through 0.15.1b allows remote attackers to cause a denial of service (SIGABRT because of double free or corruption) or possibly have unspecified other impact via a crafted file. NOTE: this may overlap CVE-2017-11552.

Patch / fix

  • SDL RHEL 8 1.2.15-37.el8
  • orc RHEL 8 0.4.28-3.el8
  • SDL2 RHEL 8 2.0.10-2.el8
  • libmad RHEL 8 0.15.1b-25.el8
  • gstreamer1 RHEL 8 1.16.1-2.el8
  • orc-compiler RHEL 8 0.4.28-3.el8
  • gstreamer1-plugins-base RHEL 8 1.16.1-1.el8
  • gstreamer1-plugins-good RHEL 8 1.16.1-1.el8

red hat advisories RHSA-2020:1631

  • orc AlmaLinux 8 0.4.28-3.el8
  • SDL2 AlmaLinux 8 2.0.10-2.el8
  • libmad AlmaLinux 8 0.15.1b-25.el8
  • gstreamer1 AlmaLinux 8 1.16.1-2.el8
  • orc-compiler AlmaLinux 8 0.4.28-3.el8
  • gstreamer1-plugins-bad-free AlmaLinux 8 1.16.1-1.el8
  • gstreamer1-plugins-ugly-free AlmaLinux 8 1.16.1-1.el8

almalinux advisories ALSA-2020:1631

  • orc Rocky Linux 8 0.4.28-3.el8
  • SDL2 Rocky Linux 8 2.0.10-2.el8
  • libmad Rocky Linux 8 0.15.1b-25.el8
  • gstreamer1 Rocky Linux 8 1.16.1-2.el8
  • gstreamer1-plugins-bad-free Rocky Linux 8 1.16.1-1.el8
  • gstreamer1-plugins-ugly-free Rocky Linux 8 1.16.1-1.el8

rocky linux advisories RLSA-2020:1631

  • libmad Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 0.15.1b-r9

alpine advisories ALPINE-CVE-2018-7263

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-2018-7263 updated cvss 3.3

libmad: Double-free in the mad_decoder_run() function

  • Red Hat CodeReady Linux Builder (v. 8) SDL2 2.0.10-2.el8, libmad 0.15.1b-25.el8 Red Hat Enterprise Linux AppStream (v. 8) orc 0.4.28-3.el8, SDL 1.2.15-37.el8, libmad 0.15.1b-25.el8, gstreamer1 1.16.1-2.el8, orc-compiler 0.4.28-3.el8, gstreamer1-plugins-base 1.16.1-1.el8, +4 more
    fixed: vendor fix RHSA-2020:1631

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

2.42% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/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.