Vulnerability Description
An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Busybox | Busybox | >= 1.27.0, <= 1.33.1 |
| Fedoraproject | Fedora | 33 |
| Netapp | Cloud Backup | - |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
| Netapp | H300E | - |
| Netapp | H500E Firmware | - |
| Netapp | H500E | - |
| Netapp | H700E Firmware | - |
| Netapp | H700E | - |
| Netapp | H410S Firmware | - |
| Netapp | H410S | - |
Related Weaknesses (CWE)
References
- https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovere
- https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-clarExploitThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.netapp.com/advisory/ntap-20211223-0002/Third Party Advisory
- https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovere
- https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-clarExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/01/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.netapp.com/advisory/ntap-20211223-0002/Third Party Advisory
FAQ
What is CVE-2021-42374?
CVE-2021-42374 is a vulnerability with a CVSS score of 5.3 (MEDIUM). An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format tha...
How severe is CVE-2021-42374?
CVE-2021-42374 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42374?
Check the references section above for vendor advisories and patch information. Affected products include: Busybox Busybox, Fedoraproject Fedora, Netapp Cloud Backup, Netapp Hci Management Node, Netapp Solidfire.