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New Glibc Flaw Grants Attackers Root Access on Major Linux Distros

ID: 2679cf09-0e4c-5118-975e-8cd03f16ecde

STIX ID: report--2679cf09-0e4c-5118-975e-8cd03f16ecde

Feed Name: The Hacker News

Threat Score
70/100

Date Published: 2024-01-31

Date Updated: 2026-04-24

Author: [email protected] (The Hacker News)

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**Executive summary:** A newly disclosed heap-based buffer overflow in glibc's __vsyslog_internal (CVE-2023-6246, CVSS 7.8) can allow local attackers to gain full root privileges; analysis also identified two other __vsyslog_internal flaws (CVE-2023-6779, CVE-2023-6780) and a historic qsort() memory-corruption bug affecting many glibc versions and major Linux distributions.

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