# CVE-2023-42363: busybox: This update for busybox, busybox-links fixes the following issues: Updated to version 1.37.0 (jsc#PED-13039): - C... CVE-2023-42363 is fixed in 8 products on 1 platform, first by busybox 1:1.36.1-6ubuntu3.1, released November 27, 2023. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2023-42363 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0042 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 27, 2023 ## Description This update for busybox, busybox-links fixes the following issues: Updated to version 1.37.0 (jsc#PED-13039): - CVE-2023-42363: Fixed use-after-free vulnerability in xasprintf function in xfuncs_printf.c (bsc#1217580) - CVE-2023-42364: Fixed use-after-free in the awk.c evaluate function (bsc#1217584) - CVE-2023-42365: Fixed use-after-free in the awk.c copyvar function (bsc#1217585) Other fixes: - fix generation of file lists via Dockerfile - add copy of busybox.links from the container to catch changes to busybox config - Blacklist creating links for halt, reboot, shutdown commands to avoid accidental use in a fully booted system (bsc#1243201) - Add getfattr applet to attr filelist - busybox-udhcpc conflicts with udhcp. - Add new sub-package for udhcpc - zgrep: don't set the label option as only the real grep supports it (bsc#1215943) - Add conflict for coreutils-systemd, package got splitted - Check in filelists instead of buildrequiring all non-busybox utils - Replace transitional %usrmerged macro with regular version check (bsc#1206798) - Create sub-package 'hexedit' [bsc#1203399] - Create sub-package 'sha3sum' [bsc#1203397] - Drop update-alternatives support - Add provides smtp_daemon to busybox-sendmail - Add conflicts: mawk to busybox-gawk - fix mkdir path to point to /usr/bin instead of /bin - add placeholder variable and ignore applet logic to busybox.install - enable halt, poweroff, reboot commands (bsc#1243201) - Fully enable udhcpc and document that this tool needs special configuration and does not work out of the box [bsc#1217883] - Replace transitional %usrmerged macro with regular version check (bsc#1206798) ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | busybox Debian 12.15 (bookworm) | 1:1.35.0-4+deb12u1 | [DEBIAN-CVE-2023-42363](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42363.md) | Nov 27, 2023 | | Linux | busybox Debian 13.5 (trixie) | 1:1.37.0-1 | [DEBIAN-CVE-2023-42363](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42363.md) | Nov 27, 2023 | | Linux | busybox Debian 14 | 1:1.37.0-1 | [DEBIAN-CVE-2023-42363](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42363.md) | Nov 27, 2023 | | Linux | busybox Ubuntu 24.04.5 LTS (noble) | 1:1.36.1-6ubuntu3.1 | [busybox 1:1.36.1-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-busybox-1-1.36.1-6ubuntu3.1.md) | Nov 27, 2023 | | Linux | busybox Ubuntu 24.10 (oracular) | 1:1.36.1-6ubuntu4 | [busybox 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-busybox-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox Ubuntu 25.04 (plucky) | 1:1.36.1-6ubuntu4 | [busybox 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-busybox-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox opensuse-leap 15.6 | 1.37.0-150500.10.11.1 | [SUSE-SU-2025:03271-2](https://patchblox.com/security/data/fix/linux/suse-su-2025-03271-2.md) | Sep 23, 2025 | | Linux | busybox sles 15.6 | 1.37.0-150500.10.11.1 | [SUSE-SU-2025:03271-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03271-1.md) | Sep 23, 2025 | | Linux | busybox sles 15.7 | 1.37.0-150700.18.4.1 | [SUSE-SU-2025:03205-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03205-1.md) | Sep 12, 2025 | | Linux | busybox-initramfs Ubuntu 24.04.5 LTS (noble) | 1:1.36.1-6ubuntu3.1 | [busybox-initramfs 1:1.36.1-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-busybox-initramfs-1-1.36.1-6ubuntu3.1.md) | Nov 27, 2023 | | Linux | busybox-initramfs Ubuntu 24.10 (oracular) | 1:1.36.1-6ubuntu4 | [busybox-initramfs 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-busybox-initramfs-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox-initramfs Ubuntu 25.04 (plucky) | 1:1.36.1-6ubuntu4 | [busybox-initramfs 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-busybox-initramfs-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox-links opensuse-leap 15.6 | 1.37.0-150500.7.7.2 | [SUSE-SU-2025:03271-2](https://patchblox.com/security/data/fix/linux/suse-su-2025-03271-2.md) | Sep 23, 2025 | | Linux | busybox-static Ubuntu 24.04.5 LTS (noble) | 1:1.36.1-6ubuntu3.1 | [busybox-static 1:1.36.1-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-busybox-static-1-1.36.1-6ubuntu3.1.md) | Nov 27, 2023 | | Linux | busybox-static Ubuntu 24.10 (oracular) | 1:1.36.1-6ubuntu4 | [busybox-static 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-busybox-static-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox-static Ubuntu 25.04 (plucky) | 1:1.36.1-6ubuntu4 | [busybox-static 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-busybox-static-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox-syslogd Ubuntu 24.04.5 LTS (noble) | 1:1.36.1-6ubuntu3.1 | [busybox-syslogd 1:1.36.1-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-busybox-syslogd-1-1.36.1-6ubuntu3.1.md) | Nov 27, 2023 | | Linux | busybox-syslogd Ubuntu 24.10 (oracular) | 1:1.36.1-6ubuntu4 | [busybox-syslogd 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-busybox-syslogd-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | busybox-syslogd Ubuntu 25.04 (plucky) | 1:1.36.1-6ubuntu4 | [busybox-syslogd 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-busybox-syslogd-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | trivy opensuse-leap 15.6 | 0.54.1-bp156.2.3.1 | [OPENSUSE-SU-2024:0269-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2024-0269-1.md) | Aug 30, 2024 | | Linux | udhcpc Ubuntu 24.04.5 LTS (noble) | 1:1.36.1-6ubuntu3.1 | [udhcpc 1:1.36.1-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-udhcpc-1-1.36.1-6ubuntu3.1.md) | Nov 27, 2023 | | Linux | udhcpc Ubuntu 24.10 (oracular) | 1:1.36.1-6ubuntu4 | [udhcpc 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-udhcpc-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | udhcpc Ubuntu 25.04 (plucky) | 1:1.36.1-6ubuntu4 | [udhcpc 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-udhcpc-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | udhcpd Ubuntu 24.04.5 LTS (noble) | 1:1.36.1-6ubuntu3.1 | [udhcpd 1:1.36.1-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-udhcpd-1-1.36.1-6ubuntu3.1.md) | Nov 27, 2023 | | Linux | udhcpd Ubuntu 24.10 (oracular) | 1:1.36.1-6ubuntu4 | [udhcpd 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-udhcpd-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | | Linux | udhcpd Ubuntu 25.04 (plucky) | 1:1.36.1-6ubuntu4 | [udhcpd 1:1.36.1-6ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-udhcpd-1-1.36.1-6ubuntu4.md) | Jan 16, 2026 | --- Data as of 2026-11-08T06:59:42Z UTC. 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