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CVE Record

CVE-2009-4835: The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_hea...

The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_header functions in libsndfile 1.0.20 allow context-dependent attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted audio file.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2009-4835 is a libsndfile 1.0.20 denial-of-service flaw. A specially crafted audio file can trigger a divide-by-zero condition and crash an application that uses vulnerable parsing functions. The main business risk is service interruption in systems that automatically process audio from users or external sources. Exposure is most likely where libsndfile 1.0.20 is embedded in applications or services that parse untrusted audio files, including upload, conversion, indexing, or media-processing workflows. Products and versions beyond libsndfile 1.0.20 are not identified in the provided data. Treat this as a targeted reliability risk, not a confirmed breach risk. Prioritize remediation for internet-facing or high-volume audio-processing services. Internal-only systems with no untrusted audio input are lower urgency, pending vendor guidance and version confirmation. Mitigation focus: Identify systems and applications using libsndfile 1.0.20.; Check libsndfile, OS distribution, and application vendor guidance for fixed packages.; Restrict untrusted audio uploads or processing where business impact is high..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
1Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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