Security readout for executives and security teams
Plain-English summary
CVE-2017-13317 is an Android issue where improper validation in HEIF image decoding may let an attacker read information from memory. It requires user interaction and does not grant code execution. Business urgency is moderate for organizations with Android or Pixel devices that may not include the May 2018 vendor security fixes.
Executive priority
Treat as a moderate mobile confidentiality risk. Prioritize remediation for fleets with unmanaged, legacy, or unsupported Android devices, especially where users may open external media. It is not currently evidenced as actively exploited in the provided sources.
Technical view
The source describes a CWE-125 out-of-bounds read in HeifDecoderImpl::getScanline in HeifDecoderImpl.cpp. CVSS 3.1 is 5.7 with adjacent attack vector, low complexity, no privileges, user interaction required, high confidentiality impact, and no integrity or availability impact. Exact affected Android versions are not detailed in the provided bundle.
Likely exposure
Exposure is most relevant to Android or Pixel devices missing the referenced Google May 2018 security bulletin fixes. The bundle lists Google Android and an Android Kernel version label, but does not provide exact device models, OS releases, or patch-level mapping.
Exploitation context
The bundle does not cite active exploitation, and KEV status is false. Exploitation requires user interaction and appears limited to information disclosure through an out-of-bounds read, not arbitrary code execution.
Researcher notes
Evidence is sparse. The record identifies the vulnerable function, weakness class, impact, CVSS vector, and a Google Pixel bulletin reference, but not exact affected release ranges or detailed remediation text. Avoid assuming broader Android exposure beyond the cited vendor context.
Mitigation direction
- Apply Google Android or Pixel security updates referenced in the May 2018 bulletin.
- Confirm unsupported Android devices have vendor guidance or replacement plans.
- Restrict processing of untrusted HEIF media where patching is delayed.
- Track CVE-2017-13317 in mobile vulnerability management workflows.
Validation and detection
- Inventory Android and Pixel devices in scope.
- Verify devices include the referenced May 2018 security bulletin fixes or later vendor updates.
- Check mobile device management records for stale Android patch levels.
- Review exception lists for unsupported devices still handling external media.
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-125: Exact CWE lookup
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Open ATT&CK lookupCVE-2017-13317 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N2.13.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.7MediumVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/pixel/2018-05-01CVE reference
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.