Vulnerability · Published Nov 3, 2021 · Assigned by apache
CVE-2021-43082heap-buffer-overflow with stats-over-http plugin
Critical 9.8
In plain English
A critical-severity buffer overflow in Apache Traffic Server from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.4%top 15.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | trafficserver | 9.1.1+ds-1 | DEBIAN-CVE-2021-43082 |
| Ubuntu:24.04:LTS | trafficserver | no fix listed | UBUNTU-CVE-2021-43082 |
| Ubuntu:25.10 | trafficserver | no fix listed | UBUNTU-CVE-2021-43082 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Traffic Server | 9.1.0 |
Weakness: CWE-120
References
- https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164 x_refsource_MISC