A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0021 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-42365:
    A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a     crafted awk pattern in the awk.c evaluate function.

    CVE-2023-42366:
    A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c     copyvar function.

    CVE-2023-42364:
    A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.

    CVE-2023-42363:
    A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox     v.1.36.1.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03271-2 advisory.

    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)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03271-1 advisory.

    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)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03205-1 advisory.

    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)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox     v.1.36.1. (CVE-2023-42363)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of busybox installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-42363 advisory.

  - A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox     v.1.36.1. (CVE-2023-42363)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the busybox package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox     v.1.36.1.(CVE-2023-42363)

Tenable has extracted the preceding description block directly from the EulerOS busybox security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of busybox installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-42363 advisory.

  - A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox     v.1.36.1. (CVE-2023-42363)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6961-1 advisory.

    It was discovered that BusyBox did not properly validate user input when performing certain arithmetic     operations. If a user or automated system were tricked into processing a specially crafted file, an     attacker could possibly use this issue to cause a denial of service, or execute arbitrary code.
    (CVE-2022-48174)

    It was discovered that BusyBox incorrectly managed memory when evaluating certain awk expressions. An     attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. This issue     only affected Ubuntu 24.04 LTS. (CVE-2023-42363, CVE-2023-42364, CVE-2023-42365)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
276241	TencentOS Server 4: busybox (TSSA-2025:0021)	Nessus	Tencent Local Security Checks	medium
265772	openSUSE 15 Security Update : busybox, busybox-links (SUSE-SU-2025:03271-2)	Nessus	SuSE Local Security Checks	medium
265420	SUSE SLED15 / SLES15 Security Update : busybox, busybox-links (SUSE-SU-2025:03271-1)	Nessus	SuSE Local Security Checks	medium
264673	SUSE SLED15 / SLES15 Security Update : busybox, busybox-links (SUSE-SU-2025:03205-1)	Nessus	SuSE Local Security Checks	medium
226248	Linux Distros Unpatched Vulnerability : CVE-2023-42363	Nessus	Misc.	medium
215347	Azure Linux 3.0 Security Update: busybox (CVE-2023-42363)	Nessus	Azure Linux Local Security Checks	medium
208352	EulerOS 2.0 SP11 : busybox (EulerOS-SA-2024-2546)	Nessus	Huawei Local Security Checks	medium
208337	EulerOS 2.0 SP11 : busybox (EulerOS-SA-2024-2572)	Nessus	Huawei Local Security Checks	medium
208334	EulerOS 2.0 SP12 : busybox (EulerOS-SA-2024-2497)	Nessus	Huawei Local Security Checks	medium
208331	EulerOS 2.0 SP12 : busybox (EulerOS-SA-2024-2521)	Nessus	Huawei Local Security Checks	medium
207173	EulerOS 2.0 SP9 : busybox (EulerOS-SA-2024-2383)	Nessus	Huawei Local Security Checks	medium
207154	EulerOS 2.0 SP10 : busybox (EulerOS-SA-2024-2431)	Nessus	Huawei Local Security Checks	medium
207145	EulerOS 2.0 SP9 : busybox (EulerOS-SA-2024-2358)	Nessus	Huawei Local Security Checks	medium
207117	EulerOS 2.0 SP10 : busybox (EulerOS-SA-2024-2408)	Nessus	Huawei Local Security Checks	medium
206410	openSUSE 15 Security Update : trivy (openSUSE-SU-2024:0268-1)	Nessus	SuSE Local Security Checks	medium
206408	openSUSE 15 Security Update : trivy (openSUSE-SU-2024:0269-1)	Nessus	SuSE Local Security Checks	medium
205791	CBL Mariner 2.0 Security Update: busybox (CVE-2023-42363)	Nessus	MarinerOS Local Security Checks	medium
205548	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : BusyBox vulnerabilities (USN-6961-1)	Nessus	Ubuntu Local Security Checks	critical

Detections

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CVE-2023-42363

medium

Tenable Plugins

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critical