Buffer overflow in Apache HTTP Server
CVE-2006-20001
A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.035 (88.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Apache HTTP Server
- Apache Software Foundation HTTP Server — versions 2.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- httpd.apache.org/security/vulnerabilities_24.html (vendor-advisory, Release Notes, Vendor Advisory)
- security.gentoo.org/glsa/202309-01
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2006-20001?
- CVE-2006-20001 is a high-severity vulnerability in Apache HTTP Server, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-01-17.
- How severe is CVE-2006-20001?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2006-20001 known to be exploited?
- 20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.