Out-of-bounds Read in Digitalcorpora Tcpflow
CVE-2018-14938
An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an integer overflow in the function handle_prism during caplen processing. If the caplen is less than 144, one can cause an integer overflow in the function handle_80211, which will result in an out-of-bounds read and may allow access to sensitive memory (or a denial of service).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (85.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Digitalcorpora Tcpflow — versions 1.5.0
- Canonical Ubuntu Linux — versions 16.04, 18.04, 18.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/simsong/tcpflow/commit/a4e1cd14eb5ccc51ed271b65b3420f7d692c40eb (Patch, Third Party Advisory)
- github.com/simsong/tcpflow/issues/182 (Exploit, Third Party Advisory)
- usn.ubuntu.com/3955-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/11/msg00046.html (mailing-list)
Frequently asked questions
- What is CVE-2018-14938?
- CVE-2018-14938 is a critical-severity vulnerability in Digitalcorpora Tcpflow, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2018-08-05.
- How severe is CVE-2018-14938?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2018-14938 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.