CVE-2023-43279
tcpreplay: Null Pointer Dereference in mask_cidr6 component at cidr.c in Tcpreplay 4.4.4 allows attackers to crash the applicati...
CVE-2023-43279 is fixed in tcpreplay on 1 platform, first by tcpreplay 4.2.6-1ubuntu0.1~esm5, released March 12, 2024. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0067
52nd percentile
Null Pointer Dereference in mask_cidr6 component at cidr.c in Tcpreplay 4.4.4 allows attackers to crash the application via crafted tcprewrite command.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| tcpreplay · Debian 13.5 (trixie) | 4.5.1-1 | DEBIAN-CVE-2023-43279 | Mar 12, 2024 |
| tcpreplay · Debian 14 | 4.5.1-1 | DEBIAN-CVE-2023-43279 | Mar 12, 2024 |
| tcpreplay · Ubuntu 18.04.6 LTS (bionic) | 4.2.6-1ubuntu0.1~esm5 | tcpreplay 4.2.6-1ubuntu0.1~esm5 | Mar 12, 2024 |
| tcpreplay · Ubuntu 20.04 LTS (focal) | 4.3.2-1ubuntu0.1~esm3 | tcpreplay 4.3.2-1ubuntu0.1~esm3 | Mar 12, 2024 |
| tcpreplay · Ubuntu 22.04.1 LTS (jammy) | 4.3.4-1ubuntu0.1~esm2 | tcpreplay 4.3.4-1ubuntu0.1~esm2 | Mar 12, 2024 |
| tcpreplay · Ubuntu 24.04.5 LTS (noble) | 4.4.4-1ubuntu0.1~esm1 | tcpreplay 4.4.4-1ubuntu0.1~esm1 | Mar 12, 2024 |
| tcpreplay · opensuse-leap 16.0 | 4.5.2-bp160.1.1 | OPENSUSE-SU-2025:20119-1 | Nov 27, 2025 |
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