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Fencer Vulns
critical 9.8

CVE-2023-33476 json

ReadyMedia (MiniDLNA) versions from 1.1.15 up to 1.3.2 is vulnerable to Buffer Overflow.

published 2023-06-02 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37639

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

ReadyMedia (MiniDLNA) versions from 1.1.15 up to 1.3.2 is vulnerable to Buffer Overflow. The vulnerability is caused by incorrect validation logic when handling HTTP requests using chunked transport encoding. This results in other code later using attacker-controlled chunk values that exceed the length of the allocated buffer, resulting in out-of-bounds read/write.

Patch / fix

  • minidlna Debian 12 1.3.0+dfsg-2.2+deb12u1
  • minidlna Debian 14, Debian 13 1.3.2+dfsg-1.1

debian advisories DEBIAN-CVE-2023-33476

  • minidlna Ubuntu 20.04 LTS 1.2.1+dfsg-1ubuntu0.20.04.2
  • minidlna Ubuntu 22.04 LTS 1.3.0+dfsg-2.1ubuntu0.1
  • minidlna Ubuntu Pro 16.04 LTS 1.1.5+dfsg-2ubuntu0.1+esm1
  • minidlna Ubuntu Pro 18.04 LTS 1.2.1+dfsg-1ubuntu0.18.04.1+esm1

ubuntu advisories UBUNTU-CVE-2023-33476

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

  • minidlna openSUSE Tumbleweed 1.3.3-2.1
  • minidlna Package Hub 15 SP5, openSUSE Leap 15.5 1.3.3-bp155.2.3.1

opensuse advisories openSUSE-SU-2024:14011-1openSUSE-SU-2024:0093-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

2.06% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • blog.coffinsec.com https://blog.coffinsec.com/0day/2023/05/31/minidlna-heap-overflow-rca.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.