NULL pointer dereference in Apache HTTP Server
CVE-2019-10097
In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.529 (99.0th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.529 · newest: 0.529 · change: 0.000
Affected products
- Apache HTTP Server — versions 2.4.33, 2.4.34, 2.4.35
- Oracle Communications Element Manager — versions 8.0.0, 8.1.0, 8.1.1
- Oracle Communications Session Report Manager — versions 8.1.1, 8.2.0, 8.2.1
- Oracle Communications Session Route Manager — versions 8.1.1, 8.2.0, 8.2.1
- Oracle Enterprise Manager Ops Center — versions 12.3.3, 12.4.0
- Oracle HTTP Server — versions 12.2.1.4.0
- Oracle Instantis Enterprisetrack
- Oracle Retail Xstore Point Of Service — versions 7.1
- Apache HTTP Server — versions 2.4.32 to 2.4.39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2019:4126 (vendor-advisory, Third Party Advisory)
- lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc58… (mailing-list)
- lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4… (mailing-list)
- www.oracle.com/security-alerts/cpuapr2020.html (Third Party Advisory)
- www.oracle.com/security-alerts/cpujul2020.html (Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html (Third Party Advisory)
- httpd.apache.org/security/vulnerabilities_24.html (Vendor Advisory)
- www.oracle.com/security-alerts/cpuoct2020.html (Third Party Advisory)
- lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af… (mailing-list)
- lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede08… (mailing-list)
Frequently asked questions
- What is CVE-2019-10097?
- CVE-2019-10097 is a high-severity vulnerability in Apache HTTP Server, classified under NULL Pointer Dereference. CVSS score: 7.2/10. Published 2019-09-26.
- How severe is CVE-2019-10097?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2019-10097 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.