---
id: CVE-2019-1010023
title: >-
  GNU Libc current is affected by: Re-mapping current loaded library with
  malicious ELF file
summary: >-
  GNU Libc current is affected by: Re-mapping current loaded library with
  malicious ELF file. The impact is: In worst case attacker may evaluate
  privileges. The component is: libld. The attack vector is: Attacker sends 2
  ELF files to victi…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
vendor: gnu
product: glibc
affected:
  - glibc
published: '2019-07-15'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T09:17:15.500'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-1010023'
references:
  - url: 'http://www.securityfocus.com/bid/109167'
    label: josh@bress.net
  - url: 'https://security-tracker.debian.org/tracker/CVE-2019-1010023'
    label: josh@bress.net
  - url: 'https://sourceware.org/bugzilla/show_bug.cgi?id=22851'
    label: josh@bress.net
  - url: >-
      https://support.f5.com/csp/article/K11932200?utm_source=f5support&amp%3Butm_medium=RSS
    label: josh@bress.net
  - url: 'https://ubuntu.com/security/CVE-2019-1010023'
    label: josh@bress.net
  - url: 'http://www.securityfocus.com/bid/109167'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security-tracker.debian.org/tracker/CVE-2019-1010023'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://sourceware.org/bugzilla/show_bug.cgi?id=22851'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://support.f5.com/csp/article/K11932200?utm_source=f5support&amp%3Butm_medium=RSS
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ubuntu.com/security/CVE-2019-1010023'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.03069
epssPercentile: 0.87573
ingestedAt: '2026-10-14T09:24:26.046Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-06-11T18:42:21.452782Z'
---

## Overview

GNU Libc current is affected by: Re-mapping current loaded library with malicious ELF file. The impact is: In worst case attacker may evaluate privileges. The component is: libld. The attack vector is: Attacker sends 2 ELF files to victim and asks to run ldd on it. ldd execute code. NOTE: Upstream comments indicate "this is being treated as a non-security bug and no real threat.

## Affected

- `glibc`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.