Double-fetch heap overflow
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
Netskope was made aware of a security vulnerability in Netskope Endpoint DLP’s Content Control Driver where a double-fetch issue leads to heap overflow. The vulnerability arises from the fact that the NumberOfBytes argument to ExAllocatePoolWithTag, and the Length argument for RtlCopyMemory, both independently dereference their value from the user supplied input buffer inside the EpdlpSetUsbAction function, known as a double-fetch. If this length value grows to a higher value in between these two calls, it will result in the RtlCopyMemory call copying user-supplied memory contents outside the range of the allocated buffer, resulting in a heap overflow. A malicious attacker will need admin privileges to exploit the issue. This issue affects Endpoint DLP version below R119.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11616
- 2026-10-03 Alias added: GHSA-368q-3gfm-fh6f
References
More Netskope vulnerabilities
- TI-2020-15056 Netskope Client through 77 allows low-privileged users to elevate their privileges to NT AUTHORITY\SYSTEM. CVSS 3.1HIGH 8.8
- TI-2026-13525 Netskope Endpoint DLP Driver Integer Overflow Leading to Kernel Pool Overflow CVSS 4.0HIGH 8.7
- TI-2024-06860 Client Enrollment Process Bypass CVSS 4.0HIGH 8.5
- TI-2023-04599 Local privilege escalation in Netskope Client CVSS 3.1HIGH 8.8
- TI-2021-20302 Sensitive Information store in NSClient logs CVSS 3.1HIGH 8.4
- TI-2023-02129 Local privilege escalation in Netskope Client CVSS 3.1HIGH 7.8
Sources
- CVE-2024-11616 · CVE Program
- CVE-2024-11616 · NVD
- FIRST EPSS
- GHSA-368q-3gfm-fh6f · GitHub Advisory Database · CC BY 4.0
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