VDB
CVE-2021-39648
CVE-2021-39648
PUBLISHED
Reported by google_android · Published December 15, 2021
In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-160822094References: Upstream kernel
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| kernel-tools | Amazon Linux | 4.14.219-161.340.amzn2 |
| perf | Amazon Linux | 4.14.219-161.340.amzn2 |
| kernel-devel | Amazon Linux | 4.14.219-161.340.amzn2 |
| kernel-livepatch-4.14.219-161.340 | Amazon Linux | 1.0-0.amzn2 |
| kernel-headers | Amazon Linux | 4.14.219-161.340.amzn2 |
| python-perf | Amazon Linux | 4.14.219-161.340.amzn2 |
| kernel-tools-devel | Amazon Linux | 4.14.219-161.340.amzn2 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | Android | Android kernel |
| amazon:2 | kernel-tools | 0 |
| amazon:2 | perf | 0 |
| amazon:2 | kernel-devel | 0 |
| amazon:2 | kernel-livepatch-4.14.219-161.340 | 0 |
| amazon:2 | kernel-headers | 0 |
| amazon:2 | python-perf | 0 |
| amazon:2 | kernel-tools-devel | 0 |
| n/a | Android | * |
| amazon:2 | kernel | 0 |
Timeline
- Dec 15, 2021 CVE Published
- Dec 16, 2021 EPSS Score (30 in total, the first dated here)
- Apr 3, 2026 Distribution Patch (4 in total, the first dated here)
- Apr 3, 2026 Security Advisory (8 in total, the first dated here)
- Jul 23, 2026 Coalition ESS Score
- Oct 18, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2021-39648
vulnetix vdb fixes CVE-2021-39648Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-39648/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart