Security readout for executives and security teams
Plain-English summary
CVE-2018-1000517 is a heap buffer overflow in BusyBox wget before commit 8e2174e9. BusyBox is often packaged into compact Linux environments, so exposure depends on where that specific wget implementation is present. The source bundle does not show active exploitation, but the impact rating is high because successful exploitation could affect confidentiality, integrity, and availability.
Executive priority
Treat this as a high-priority hygiene and supply-chain validation item, especially for Linux appliances, firmware, and minimal images. Urgency rises if BusyBox wget is reachable in user-driven workflows or untrusted network retrieval paths.
Technical view
The CVE describes a CWE-120 buffer overflow in BusyBox wget, fixed after commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. CVSS 3.1 is 8.0 with network attack vector, low complexity, low privileges, and required user interaction. Debian LTS and Ubuntu published security updates, indicating downstream package remediation.
Likely exposure
Systems are likely exposed only if they include BusyBox wget built before the cited fixing commit or vulnerable downstream BusyBox packages. The bundle does not identify exact affected product versions, so validate by package metadata, build provenance, or vendor advisories.
Exploitation context
The provided CVE says exploitation appears possible via network connectivity. The CVSS vector indicates user interaction is required and low privileges are needed. CISA KEV status is false, and the supplied sources do not claim active exploitation.
Researcher notes
Evidence is limited to the CVE description, fixing commit, and downstream Debian/Ubuntu advisories. The bundle lacks exact vulnerable version ranges, proof-of-concept status, exploit telemetry, and affected product CPEs. Avoid broad product claims without local inventory or vendor confirmation.
Mitigation direction
- Update BusyBox through the operating system or firmware vendor channel.
- Ensure deployed builds include BusyBox commit 8e2174e9 or later fix lineage.
- Apply Debian LTS or Ubuntu security updates where those distributions are used.
- For appliances or firmware, request vendor confirmation of BusyBox wget status.
- Disable or remove BusyBox wget where it is unnecessary and vendor-supported.
Validation and detection
- Inventory hosts, containers, firmware, and images that include BusyBox wget.
- Check BusyBox package versions against Debian, Ubuntu, or vendor advisories.
- Confirm source builds include commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e or later.
- Review SBOMs and firmware manifests for bundled BusyBox components.
- Prioritize validation where BusyBox wget can initiate network retrievals.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-1000517 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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:L/UI:R/S:U/C:H/I:H/A:H2.15.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://git.busybox.net/busybox/commit/?id=8e2174e9bd836e53c8b9c6e00d1bc6e2a718686eCVE reference · x_refsource_MISC
- [debian-lts-announce] 20180727 [SECURITY] [DLA 1445-1] busybox security updateCVE reference · mailing-list, x_refsource_MLIST
- USN-3935-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20210215 [SECURITY] [DLA 2559-1] busybox security updateCVE reference · mailing-list, x_refsource_MLIST
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.