Vulnerability in Apache HTTP Server
CVE-2019-0190
A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.
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: 0.591 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.591 · newest: 0.591 · change: 0.000
Affected products
- Apache HTTP Server — versions 2.4.37
- Apache Software Foundation HTTP Server — versions Apache HTTP Server 2.4.37
- OpenSSL
- Oracle Enterprise Manager Ops Center — versions 12.3.3
- Oracle Hospitality Guest Access — versions 4.2.0, 4.2.1
- Oracle Instantis Enterprisetrack — versions 17.1, 17.2, 17.3
- Oracle Retail Xstore Point Of Service — versions 7.0, 7.1
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/106743 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201903-21 (vendor-advisory, Third Party Advisory)
- lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd6… (mailing-list)
- lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209… (mailing-list)
- lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc58… (mailing-list)
- lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4… (mailing-list)
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html (Third Party Advisory)
- httpd.apache.org/security/vulnerabilities_24.html (Vendor Advisory)
- lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af… (mailing-list)
Frequently asked questions
- What is CVE-2019-0190?
- CVE-2019-0190 is a high-severity vulnerability in Apache HTTP Server. CVSS score: 7.5/10. Published 2019-01-30.
- How severe is CVE-2019-0190?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-0190 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.