CVE & CISA-KEV Catalog

CVE-2014-3640

LOW
2.1
CVSS v2
NVD

Description

The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available
qemuDebian
Fixed in:2.1+dfsg-5CVE-2014-3640
Fixed in:2.1+dfsg-5CVE-2014-3640
Fixed in:2.1+dfsg-5CVE-2014-3640
Fixed in:2.1+dfsg-5CVE-2014-3640
qemuUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-systemUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-aarch64Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-armUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-mipsUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-miscUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-ppcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-sparcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1
qemu-system-x86Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.7USN-2409-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.40%probability of exploitation in 30 days
32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Issue Tracking1
Other references1

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-21758High7.592%-Fix
CVE-2023-21547High7.588%-Fix
CVE-2014-3470Medium4.386%-Fix
CVE-2021-44224High8.282%-Fix
CVE-2016-0742High7.582%-Fix
CVE-2009-1386Medium5.080%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.