THREATPORT/VULNERABILITY/CVE-2007-1804
HIGH SEVERITY

CVE-2007-1804

Pulseaudio vulnerability

CVSS
7.8
EPSS
7.4%
EPSS pct
94th
Exploited
No known
PulseAudio 0.9.5 allows remote attackers to cause a denial of service (daemon crash) via (1) a PA_PSTREAM_DESCRIPTOR_LENGTH value of FRAME_SIZE_MAX_ALLOW sent on TCP port 9875, which triggers a p->export assertion failure in do_read; (2) a PA_PSTREAM_DESCRIPTOR_LENGTH value of 0 sent on TCP port 9875, which triggers a length assertion failure in pa_memblock_new; or (3) an empty packet on UDP port 9875, which triggers a t assertion failure in pa_sdp_parse; and allows remote authenticated users to cause a denial of service (daemon crash) via a crafted packet on TCP port 9875 that (4) triggers a maxlength assertion failure in pa_memblockq_new, (5) triggers a size assertion failure in pa_xmalloc, or (6) plays a certain sound file.
Affected vendor
Pulseaudio
Affected product
Pulseaudio
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Published
2007-04-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 7.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2007-1804

  • Confirm whether Pulseaudio Pulseaudio is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2007-1804.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-1804

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-1804 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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