Security readout for executives and security teams
CVE-2017-12995 is a tcpdump DNS parsing flaw fixed before version 4.9.2. A specially formed DNS input could make tcpdump loop indefinitely while decoding traffic, potentially disrupting monitoring, diagnostics, or forensic workflows that rely on tcpdump. Exposure is most likely on systems running tcpdump before 4.9.2, especially packet capture hosts, troubleshooting workstations, sensors, and appliances that parse DNS traffic or stored captures. The source bundle does not enumerate exact vendor product versions beyond tcpdump. Treat as urgent hygiene for security operations and infrastructure teams, especially where tcpdump supports monitoring or incident response. No active exploitation evidence is provided, but the critical score and low-complexity network vector justify prompt remediation. Mitigation focus: Upgrade tcpdump to 4.9.2 or a vendor-fixed package.; Apply relevant Debian, Gentoo, Apple, or Red Hat updates where applicable.; Check vendor guidance for backported fixes in supported distributions..
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-2017-12995 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
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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/3a76fd7c95fced2c2f8c8148a9055c3a542eff29CVE 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.