Buffer overflow in Apache HTTP Server
CVE-2020-11984
Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.900 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.900 · newest: 0.900 · change: 0.000
Affected products
- Apache HTTP Server
- NetApp Clustered Data Ontap
- Oracle Communications Element Manager
- Oracle Communications Session Report Manager
- Oracle Communications Session Route Manager
- Oracle Enterprise Manager Ops Center — versions 12.4.0.0
- Oracle Hyperion Infrastructure Technology — versions 11.1.2.4
- Oracle Instantis Enterprisetrack — versions 17.1, 17.2, 17.3
- Oracle Zfs Storage Appliance Kit — versions 8.8
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- httpd.apache.org/security/vulnerabilities_24.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2020/08/08/1 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202008-04 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/08/08/10 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/08/08/8 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/08/08/9 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/08/10/5 (Vendor Advisory, mailing-list, Mailing List)
- lists.apache.org/thread.html/r5debe8f82728a00a4a68bc904dd6c35423bdfc8d601cfb457… (mailing-list)
- lists.apache.org/thread.html/r623de9b2b2433a87f3f3a15900419fc9c00c77b26936dfea4… (mailing-list)
- www.openwall.com/lists/oss-security/2020/08/17/2 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-11984?
- CVE-2020-11984 is a critical-severity vulnerability in Apache HTTP Server, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-08-07.
- How severe is CVE-2020-11984?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-11984 known to be exploited?
- 19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.