Out-of-bounds Read in Apache HTTP Server
CVE-2018-1303
A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.698 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.698 · newest: 0.698 · change: 0.000
Affected products
- Apache HTTP Server
- Apache Software Foundation HTTP Server — versions 2.4.5 to 2.4.29
- NetApp Clustered Data Ontap
- NetApp Santricity Cloud Connector
- NetApp Storage Automation Store
- NetApp Storagegrid
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3627-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/103522 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2018/dsa-4164 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20180601-0004/ (Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3558 (vendor-advisory, Third Party Advisory)
- support.hpe.com/hpsc/doc/public/display (Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0367 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3627-2/ (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1040572 (VDB Entry, Third Party Advisory, vdb-entry)
- httpd.apache.org/security/vulnerabilities_24.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-1303?
- CVE-2018-1303 is a high-severity vulnerability in Apache HTTP Server, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2018-03-26.
- How severe is CVE-2018-1303?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-1303 known to be exploited?
- 41 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.