Security readout for executives and security teams
CVE-2017-12893 is a memory read flaw in tcpdump’s SMB/CIFS packet parser before version 4.9.2. A crafted network packet could make tcpdump read beyond an intended buffer while analyzing traffic. The source bundle rates it critical, but it does not provide evidence of active exploitation. Exposure is most likely where tcpdump before 4.9.2 is installed and used to parse SMB/CIFS traffic. Network monitoring hosts, troubleshooting jump boxes, incident-response workstations, and servers with older distribution packages should be checked. The supplied affected CPE data is incomplete, so product exposure must be validated by installed package versions. Prioritize remediation on systems used for network monitoring, troubleshooting, and incident response. The vulnerability is rated critical and remotely reachable through packet parsing, but the provided evidence does not show active exploitation. Upgrading tcpdump through normal vendor channels is the practical business action. Mitigation focus: Upgrade tcpdump to 4.9.2 or a vendor-fixed package.; Review Gentoo, Debian, Apple, and Red Hat advisories for platform-specific package status.; Avoid using vulnerable tcpdump builds on untrusted SMB/CIFS traffic until upgraded..
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-2017-12893 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/6f5ba2b651cd9d4b7fa8ee5c4f94460645877c45CVE 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.