Plataforma
c
Componente
libsndfile
CVE-2019-3832 describes a buffer read vulnerability discovered in the libsndfile library. This flaw allows a local attacker to trigger an application crash by exploiting a weakness in the wavwriteheader() function, a consequence of an incomplete fix addressing CVE-2018-19758. Affected versions include those prior to a patch release, specifically versions less than or equal to NA. Mitigation strategies focus on upgrading to a patched version of libsndfile when available.
The primary impact of CVE-2019-3832 is denial of service (DoS). An attacker can exploit this vulnerability to crash the application utilizing libsndfile. While data exfiltration is not directly possible through this buffer read, a crash can disrupt service and potentially lead to further exploitation if the application is critical. The blast radius is limited to the application using libsndfile and the local attacker's ability to trigger the vulnerability. Successful exploitation requires local access to the system running the vulnerable application.
CVE-2019-3832 was publicly disclosed on March 20, 2019. There is no indication of active exploitation campaigns targeting this vulnerability. It is not listed on the CISA KEV catalog. Public proof-of-concept exploits are not widely available, suggesting a relatively low probability of exploitation in the wild.
Applications that rely on libsndfile for WAV file processing are at risk. This includes audio editing software, media players, and any application that handles WAV files. Systems with older, unpatched versions of libsndfile are particularly vulnerable. Developers who have integrated libsndfile into their applications should prioritize upgrading to a patched version.
• c/linux: Use lsof or proc to identify processes using libsndfile. Monitor these processes for unexpected crashes or errors related to WAV file processing.
lsof | grep libsndfile• c/windows: Use Process Explorer to identify processes using libsndfile. Monitor these processes for crashes or errors related to WAV file processing. Check for unusual file access patterns to WAV files. • generic: Monitor application logs for errors or crashes specifically mentioning libsndfile or WAV file processing. Look for patterns of repeated errors that might indicate an attacker attempting to trigger the vulnerability.
disclosure
Estado del Exploit
EPSS
0.10% (29% percentil)
Vector CVSS
The recommended mitigation for CVE-2019-3832 is to upgrade to a patched version of libsndfile. Since a specific fixed version is not provided, it's crucial to consult the libsndfile project's website or security advisories for the latest release. In the absence of an immediate upgrade, consider implementing input validation on WAV files processed by the application to prevent malformed headers from being parsed. While a WAF or proxy is unlikely to directly mitigate this vulnerability, careful monitoring of application crashes and error logs can help detect potential exploitation attempts.
Actualice la biblioteca libsndfile a una versión corregida que incluya la solución completa para la vulnerabilidad CVE-2018-19758. Esto evitará la lectura fuera de los límites del buffer en la función wav_write_header() y prevendrá posibles fallos de la aplicación. Consulte las notas de la versión para obtener detalles específicos sobre la solución.
Análisis de vulnerabilidades y alertas críticas directamente en tu correo.
CVE-2019-3832 is a LOW severity buffer read vulnerability in the libsndfile library, stemming from an incomplete fix for CVE-2018-19758. It allows a local attacker to crash an application processing WAV files.
You are affected if your application uses libsndfile and is running a version less than or equal to NA. Check your libsndfile version and upgrade if necessary.
Upgrade to a patched version of libsndfile. Consult the libsndfile project's website or security advisories for the latest release.
There is no indication of active exploitation campaigns targeting CVE-2019-3832 at this time.
Refer to the libsndfile project's website and security advisories for information related to CVE-2019-3832.
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