Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Wireshark

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• wireshark wireshark3.6.0 and later · up to 3.6.18 inclusive
• wireshark wireshark4.0.0 and later · up to 4.0.10 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitLab). Independent of NVD's CPE analysis and usually ahead of it.

• Wireshark Foundation Wireshark

  • 4.0.0 and later · before 4.0.11affected · semver
  • 3.6.0 and later · before 3.6.19affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2010-0304Multiple buffer overflows in the LWRES dissector in Wireshark 0.9.15 through 1.0.10 and 1.2.0 through 1.2.5 allow remote attackers to cause
  52Plan
• CVE-2014-2299Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in Wireshark 1.8.x before 1.8.13 and 1.10.x before 1.10.6 all
  51Plan
• CVE-2011-1591Stack-based buffer overflow in the DECT dissector in epan/dissectors/packet-dect.c in Wireshark 1.4.x before 1.4.5 allows remote attackers t
  50Plan
• CVE-2011-3360Untrusted search path vulnerability in Wireshark 1.4.x before 1.4.9 and 1.6.x before 1.6.2 allows local users to gain privileges via a Troja
  47Plan
• CVE-2010-4538Buffer overflow in the sect_enttec_dmx_da function in epan/dissectors/packet-enttec.c in Wireshark 1.4.2 allows remote attackers to cause a
  46Plan
• CVE-2009-1210Format string vulnerability in the PROFINET/DCP (PN-DCP) dissector in Wireshark 1.0.6 and earlier allows remote attackers to execute arbitra
  45Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.