Security readout for executives and security teams
CVE-2017-13047 is a critical buffer over-read in tcpdump’s ISO ES-IS packet parser before version 4.9.2. It matters where tcpdump processes network traffic or captures that may include maliciously crafted ISO ES-IS data. The source bundle does not show active exploitation evidence. Exposure is most likely on systems using tcpdump versions before 4.9.2, especially network monitoring hosts, incident response workstations, packet-capture workflows, and systems receiving vendor tcpdump packages listed by Gentoo, Debian, Apple, or Red Hat advisories. Prioritize remediation where tcpdump is installed on monitoring, security, or administrator systems. The age of the CVE lowers surprise risk, but the critical score and simple network vector make outdated installations unacceptable in managed environments. Mitigation focus: Upgrade tcpdump to 4.9.2 or a vendor-fixed package.; Apply applicable Gentoo, Debian, Apple, or Red Hat security updates.; Avoid parsing untrusted captures with vulnerable tcpdump versions..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2017-13047 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/331530a4076c69bbd2e3214db6ccbe834fb75640CVE 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.