--- cve: "CVE-2023-52672" severity: "HIGH" cvss: 7.0 epss: "26%" vendor: "Linux" kev: false exploited: false published: "2024-05-17 14:15:10" tags: [cve, security, high] source: tsecurity.de CVE-Dossier exported: "2026-09-09T16:11:50+02:00" --- # CVE-2023-52672 > 7.0 HIGH ## Beschreibung In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1]. The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write. Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue. [Christian Brauner : rewrite to account for watch queues] ## CVSS-Vektor ``` CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Lokal | good | | AC Komplexität | Hoch | good | | PR Privilegien | Gering | warn | | UI Interaktion | Keine | bad | | S Scope | Unverändert | good | | C Vertraulichkeit | Hoch | bad | | I Integrität | Hoch | bad | | A Verfügbarkeit | Hoch | bad | ## Patch verfügbar (OSV) - Kernel ≥ 5.10.210 - Kernel ≥ 5.15.149 - Kernel ≥ 6.1.76 - Kernel ≥ 6.6.15 - Kernel ≥ 6.7.3 ## Referenzen - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-52672) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_