CVE-2023-42365
published 2023-11-27CVE-2023-42365: A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
PriorityP419medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
0.40%
32.0th percentile
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| busybox | busybox | — | — |
| busybox | busybox | >= 0 < 1:1.30.1-6+deb11u1 | 1:1.30.1-6+deb11u1 |
| busybox | busybox | >= 0 < 1:1.37.0-1 | 1:1.37.0-1 |
| busybox | busybox | >= 0 < 1:1.37.0-1 | 1:1.37.0-1 |
| busybox | busybox | >= 0 < 1:1.30.1-4ubuntu6.5 | 1:1.30.1-4ubuntu6.5 |
| busybox | busybox | >= 0 < 1:1.30.1-7ubuntu3.1 | 1:1.30.1-7ubuntu3.1 |
| busybox | busybox | >= 0 < 1:1.36.1-6ubuntu3.1 | 1:1.36.1-6ubuntu3.1 |
| debian | busybox | < busybox 1:1.30.1-6+deb11u1 (bullseye) | busybox 1:1.30.1-6+deb11u1 (bullseye) |
| msrc | azl3_busybox_1.36.1-12_on_azure_linux_3.0 | — | — |
| msrc | azl3_busybox_1.36.1-7_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_busybox_1.35.0-11_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_busybox_1.35.0-13_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
busybox vulnerabilities
osv·2024-08-14·CVSS 9.8
CVE-2022-48174 [CRITICAL] busybox vulnerabilities
busybox vulnerabilities
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)
GHSA
GHSA-j44g-3846-7q49: A use-after-free vulnerability was discovered in BusyBox v
ghsa_unreviewed·2023-11-28
CVE-2023-42365 [MEDIUM] CWE-416 GHSA-j44g-3846-7q49: A use-after-free vulnerability was discovered in BusyBox v
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
OSV
CVE-2023-42365: A use-after-free vulnerability was discovered in BusyBox v
osv·2023-11-27·CVSS 5.5
CVE-2023-42365 [MEDIUM] CVE-2023-42365: A use-after-free vulnerability was discovered in BusyBox v
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
Ubuntu
BusyBox vulnerabilities
vendor_ubuntu·2024-08-14·CVSS 9.8
CVE-2023-42363 [CRITICAL] BusyBox vulnerabilities
Title: BusyBox vulnerabilities
Summary: Several security issues were fixed in BusyBox.
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)
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
busybox: use-after-free
vendor_redhat·2023-11-28·CVSS 5.5
CVE-2023-42365 [MEDIUM] CWE-416 busybox: use-after-free
busybox: use-after-free
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
Package: busybox (Red Hat Enterprise Linux 6) - Out of support scope
Microsoft
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
vendor_msrc·2023-11-14·CVSS 5.5
CVE-2023-42365 [MEDIUM] CWE-416 A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Customer Action Require
Debian
CVE-2023-42365: busybox - A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted ...
vendor_debian·2023·CVSS 5.5
CVE-2023-42365 [MEDIUM] CVE-2023-42365: busybox - A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted ...
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
Scope: local
bookworm: open
bullseye: resolved (fixed in 1:1.30.1-6+deb11u1)
forky: resolved (fixed in 1:1.37.0-1)
sid: resolved (fixed in 1:1.37.0-1)
trixie: resolved (fixed in 1:1.37.0-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-11-27
Published