Log in Start free

Vulnerability · Published Dec 21, 2023 · Assigned by redhat

CVE-2023-4256Tcpreplay: tcprewrite: double free in tcpedit_dlt_cleanup() in plugins/dlt_plugins.c

Medium 5.5

In plain English

A medium-severity double free in Extra Packages for Enterprise Linux from Fedora. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 74.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() function within plugins/dlt_plugins.c. This vulnerability can be exploited by supplying a specifically crafted file to the tcprewrite binary. This flaw enables a local attacker to initiate a Denial of Service (DoS) attack.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12tcpreplayno fix listedDEBIAN-CVE-2023-4256
Debian:13tcpreplay4.5.1-1DEBIAN-CVE-2023-4256
Debian:14tcpreplay4.5.1-1DEBIAN-CVE-2023-4256

Affected products (as reported)

VendorProductVersions
n/a tcpreplay see references
Fedora Extra Packages for Enterprise Linux see references
Fedora Fedora see references

Weakness: CWE-415 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References