Use After Free in Apache HTTP Server
CVE-2019-0196
A vulnerability was found in Apache HTTP Server 2.4.17 to 2.4.38. Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparison when determining the method of a request and thus process the request incorrectly.
Vulnerability class: Use-After-Free
EPSS: 0.193 (97.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Apache Http_server
- Apache Software Foundation Http Server — versions 2.4.17 to 2.4.38
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory, Mitigation)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (mailing-list, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory)
- security@apache.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@apache.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- security@apache.org (vendor-advisory, Patch, Mailing List, Third Party Advisory, x_refsource_SUSE)
- security@apache.org (vendor-advisory, Patch, Mailing List, Third Party Advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2019-0196?
- CVE-2019-0196 is a medium-severity vulnerability in Apache HTTP Server, classified under Use After Free. CVSS score: 5.3/10. Published 2019-06-11.
- How severe is CVE-2019-0196?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2019-0196 known to be exploited?
- 22 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.