CVE & CISA-KEV CatalogNVD
CVE-2021-47171
MEDIUM5.5
CVSS v3
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: fix memory leak in smsc75xx_bind Syzbot reported memory leak in smsc75xx_bind(). The problem was is non-freed memory in case of errors after memory allocation. backtrace: [<ffffffff84245b62>] kmalloc include/linux/slab.h:556 [inline] [<ffffffff84245b62>] kzalloc include/linux/slab.h:686 [inline] [<ffffffff84245b62>] smsc75xx_bind+0x7a/0x334 drivers/net/usb/smsc75xx.c:1460 [<ffffffff82b5b2e6>] usbnet_probe+0x3b6/0xc30 drivers/net/usb/usbnet.c:1728
How to fix
Remediation Available
linuxDebian
Fixed in:5.10.46-1CVE-2021-47171
Fixed in:5.14.6-1CVE-2021-47171
Fixed in:5.14.6-1CVE-2021-47171
Fixed in:5.14.6-1CVE-2021-47171
bpftoolRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
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bpftoolRocky
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bpftool-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
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bpftool-debuginfoRocky
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kernelRocky
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kernelRed Hat / RHEL
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kernel-abi-stablelistsRed Hat / RHEL
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kernel-abi-stablelistsRocky
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kernel-coreRocky
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kernel-coreRed Hat / RHEL
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kernel-debugRed Hat / RHEL
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kernel-debugRocky
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kernel-debug-coreRocky
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kernel-debug-coreRed Hat / RHEL
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kernel-debug-debuginfoRed Hat / RHEL
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kernel-debug-debuginfoRocky
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kernel-debug-develRed Hat / RHEL
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kernel-debug-develRocky
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kernel-debug-modulesRed Hat / RHEL
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kernel-debug-modulesRocky
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kernel-debug-modules-extraRed Hat / RHEL
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kernel-debug-modules-extraRocky
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kernel-debuginfoRed Hat / RHEL
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kernel-debuginfoRocky
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kernel-debuginfo-common-aarch64Rocky
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kernel-debuginfo-common-aarch64Red Hat / RHEL
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kernel-debuginfo-common-ppc64leRocky
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kernel-debuginfo-common-ppc64leRed Hat / RHEL
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kernel-debuginfo-common-s390xRocky
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kernel-debuginfo-common-s390xRed Hat / RHEL
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kernel-debuginfo-common-x86_64Red Hat / RHEL
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kernel-debuginfo-common-x86_64Rocky
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kernel-develRed Hat / RHEL
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kernel-develRocky
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kernel-docRed Hat / RHEL
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kernel-docRocky
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kernel-modulesRed Hat / RHEL
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kernel-modulesRocky
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kernel-modules-extraRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
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kernel-modules-extraRocky
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kernel-rtRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
kernel-rtRocky
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kernel-rt-coreRed Hat / RHEL
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kernel-rt-coreRocky
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kernel-rt-debugRed Hat / RHEL
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kernel-rt-debugRocky
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kernel-rt-debug-coreRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
kernel-rt-debug-coreRocky
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
kernel-rt-debug-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
kernel-rt-debug-debuginfoRocky
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kernel-rt-debug-develRocky
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kernel-rt-debug-develRed Hat / RHEL
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kernel-rt-debug-kvmRed Hat / RHEL
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kernel-rt-debug-kvmRocky
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kernel-rt-debug-modulesRed Hat / RHEL
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kernel-rt-debug-modulesRocky
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kernel-rt-debug-modules-extraRocky
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kernel-rt-debug-modules-extraRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
kernel-rt-debuginfoRocky
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kernel-rt-debuginfoRed Hat / RHEL
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kernel-rt-debuginfo-common-x86_64Rocky
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kernel-rt-debuginfo-common-x86_64Red Hat / RHEL
Fixed in:0:4.18.0-553.5.1.rt7.346.el8_10RHSA-2024:3627
kernel-rt-develRocky
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kernel-rt-develRed Hat / RHEL
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kernel-rt-kvmRocky
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kernel-rt-kvmRed Hat / RHEL
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kernel-rt-modulesRocky
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kernel-rt-modulesRed Hat / RHEL
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kernel-rt-modules-extraRocky
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kernel-rt-modules-extraRed Hat / RHEL
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kernel-toolsRocky
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kernel-toolsRed Hat / RHEL
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kernel-tools-debuginfoRed Hat / RHEL
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kernel-tools-debuginfoRocky
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kernel-tools-libsRed Hat / RHEL
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kernel-tools-libsRocky
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kernel-tools-libs-develRocky
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kernel-tools-libs-develRed Hat / RHEL
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kernel-zfcpdumpRed Hat / RHEL
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kernel-zfcpdumpRocky
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kernel-zfcpdump-coreRed Hat / RHEL
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kernel-zfcpdump-coreRocky
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kernel-zfcpdump-debuginfoRocky
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kernel-zfcpdump-debuginfoRed Hat / RHEL
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kernel-zfcpdump-develRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
kernel-zfcpdump-develRocky
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kernel-zfcpdump-modulesRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
kernel-zfcpdump-modulesRocky
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kernel-zfcpdump-modules-extraRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
kernel-zfcpdump-modules-extraRocky
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perfRed Hat / RHEL
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perfRocky
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perf-debuginfoRed Hat / RHEL
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perf-debuginfoRocky
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Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
python3-perfRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
python3-perfRocky
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
python3-perf-debuginfoRocky
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
python3-perf-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Fixed in:0:4.18.0-553.5.1.el8_10RHSA-2024:3618
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
0.24%probability of exploitation in 30 days
15thpercentile
Low risk: more likely to be exploited than 15% of all known CVEs.
References
Related Vulnerabilities
Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-13934 | High | 7.5 | 64% | - | Fix |
| CVE-2016-6304 | High | 7.5 | 63% | - | Fix |
| CVE-2019-12265 | Medium | 5.3 | 55% | - | Fix |
| CVE-2001-0136 | Medium | 5.0 | 45% | - | - |
| CVE-2016-4232 | High | 7.5 | 36% | - | - |
| CVE-2001-0543 | Medium | 5.0 | 21% | - | - |
Embed a live status badge for CVE-2021-47171
Markdown
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<a href="https://tridentstack.com/cve/CVE-2021-47171"><img src="https://tridentstack.com/cve/badge/CVE-2021-47171.svg" alt="CVE-2021-47171"></a>Find and fix vulnerabilities across your fleet
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.