Security readout for executives and security teams
CVE-2017-13020 is a tcpdump packet-decoding flaw in the VTP parser before version 4.9.2. A crafted packet or capture could make tcpdump read beyond expected memory while parsing, creating risk when analysts or systems process untrusted traffic data. Exposure is most likely on systems running tcpdump versions before 4.9.2, especially where tcpdump processes untrusted network traffic or packet capture files. The bundle does not provide complete product CPEs. Prioritize remediation on security monitoring, network analysis, and incident-response hosts. The vulnerability is old, but vulnerable tcpdump installations may persist in appliances, legacy systems, or analyst workstations. Mitigation focus: Upgrade tcpdump to 4.9.2 or later where available.; Apply fixed packages from the relevant OS vendor advisory.; Restrict tcpdump use to trusted users until patched..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupCVE-2017-13020 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- GLSA-201709-23CVE reference · vendor-advisory, x_refsource_GENTOO
- https://support.apple.com/HT208221CVE reference · x_refsource_CONFIRM
- https://github.com/the-tcpdump-group/tcpdump/commit/d692d67332bcc90540088ad8e725eb3279e39863CVE reference · x_refsource_CONFIRM
- https://github.com/the-tcpdump-group/tcpdump/commit/c5dd7bef5e54da5996dc4713284aa6266ae75b75CVE reference · x_refsource_CONFIRM
- RHEA-2018:0705CVE reference · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.