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CVE Record

CVE-2019-1010025: GNU Libc current is affected by: Mitigation bypass.

GNU Libc current is affected by: Mitigation bypass. The impact is: Attacker may guess the heap addresses of pthread_created thread. The component is: glibc. NOTE: the vendor's position is "ASLR bypass itself is not a vulnerability.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE describes a potential ASLR and heap-address mitigation bypass in GNU glibc. The reported impact is that an attacker may guess heap addresses for pthread-created threads. The record also states the vendor position that an ASLR bypass by itself is not a vulnerability, so business risk is unclear from the supplied evidence.

Executive priority

Treat this as a low-urgency tracking item unless a vendor flags affected assets or another vulnerability depends on this bypass. There is no supplied evidence of active exploitation or standalone compromise.

Technical view

The affected component is GNU glibc, described as current at least as of 2018-02-16. The behavior may reduce address randomization for heap addresses associated with pthread-created threads. No CVSS, CWE, confirmed exploit activity, or source-provided patch details are included in the bundle.

Likely exposure

Exposure is limited to environments using affected GNU glibc builds, but the bundle does not identify specific fixed or vulnerable package versions. Linux distributions and appliances should be checked against their own advisories.

Exploitation context

The source bundle does not show active exploitation, and KEV status is false. The issue is a mitigation bypass, not a complete standalone compromise path in the supplied evidence. Practical impact likely depends on chaining with another memory-corruption flaw.

Researcher notes

Focus validation on package provenance and vendor status, not proof-of-concept reproduction. The key uncertainty is whether vendors classify and patch this behavior for specific glibc releases or downstream products.

Mitigation direction

  • Check GNU, distribution, and appliance vendor advisories for affected glibc package status.
  • Prioritize normal operating system security updates where vendors provide glibc fixes.
  • Do not assume exploitability without a separate vulnerability chain.
  • Track Debian, Ubuntu, and F5 guidance for product-specific handling.

Validation and detection

  • Inventory systems and products that rely on GNU glibc.
  • Compare installed glibc packages against vendor advisory status.
  • Confirm whether any affected appliances are covered by F5 guidance.
  • Document compensating controls that reduce memory-corruption exploit chains.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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CVE-2019-1010025 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GNU Libcglibccurrent (At least as of 2018-02-16)Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.