Integer overflow in Apache HTTP Server
CVE-2022-28614
The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use the 'ap_rputs' function and may pass it a very large (INT_MAX or larger) string must be compiled against current headers to resolve the issue.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.049 (91.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.050 · newest: 0.049 · change: -0.001
Affected products
- Apache HTTP Server
- Apache Software Foundation HTTP Server — versions unspecified
- NetApp Clustered Data Ontap
- Fedoraproject Fedora — versions 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- httpd.apache.org/security/vulnerabilities_24.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/06/08/4 (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220624-0005/ (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202208-20 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-28614?
- CVE-2022-28614 is a medium-severity vulnerability in Apache HTTP Server, classified under Integer Overflow or Wraparound. CVSS score: 5.3/10. Published 2022-06-09.
- How severe is CVE-2022-28614?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-28614 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.