Out-of-bounds Read in Oracle HTTP Server
CVE-2021-4183
Crash in the pcapng file parser in Wireshark 3.6.0 allows denial of service via crafted capture file
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.001
Affected products
- Oracle HTTP Server — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle Zfs Storage Appliance Kit — versions 8.8
- Wireshark — versions 3.6.0
- Wireshark Foundation — versions =3.6.0
- Fedoraproject Fedora — versions 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wireshark.org/security/wnpa-sec-2021-19.html (Vendor Advisory)
- gitlab.com/wireshark/wireshark/-/issues/17755 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4183.json (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)
- www.oracle.com/security-alerts/cpuapr2022.html (Patch, Third Party Advisory)
- security.gentoo.org/glsa/202210-04 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4183?
- CVE-2021-4183 is a medium-severity vulnerability in Oracle HTTP Server, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2021-12-30.
- How severe is CVE-2021-4183?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-4183 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.