VDB

CVE-2020-25670

CVE-2020-25670 PUBLISHED

Reported by redhat · Published May 26, 2021

A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
kernelAmazon Linux4.14.231-173.360.amzn2
perfAmazon Linux4.14.231-173.360.amzn2
kernel-tools-develAmazon Linux4.14.231-173.360.amzn2
kernel-toolsAmazon Linux4.14.231-173.360.amzn2
linux-azure-4.15Ubuntu:18.04:LTS4.15.0-1115.128
linux-aws-fipsUbuntu:Pro:FIPS-updates:18.04:LTS4.15.0-2045.47
linux-oracleUbuntu:18.04:LTS4.15.0-1072.80
linux_kernellinux5.11.14, 5.10.30, 5.4.112, 4.19.187, 4.14.231, 4.9.267, 4.4.267
linux-aws-hweUbuntu:Pro:16.04:LTS4.15.0-1103.110~16.04.1
linux-raspi2Ubuntu:18.04:LTS4.15.0-1086.91
linux-dell300xUbuntu:18.04:LTS4.15.0-1022.26
linux-fipsUbuntu:Pro:FIPS-updates:18.04:LTS4.15.0-1060.68

25 more packages have a fixed version. See every fix in Lookup.

Affected products

VendorProductVersions
n/aLinux KernelAll
amazon:2kernel0
amazon:2perf0
amazon:2kernel-tools-devel0
amazon:2kernel-tools0
n/aLinux Kernel*
amazon:2kernel-devel0
amazon:2python-perf0
amazon:2kernel-headers0
amazon:2kernel-livepatch-4.14.231-173.3600

Timeline

  • Nov 2, 2020 CVE Published
  • May 27, 2021 EPSS Score (30 in total, the first dated here)
  • Mar 28, 2025 PoC Published
  • Feb 23, 2026 CVE Updated
  • Mar 6, 2026 Distribution Patch (21 in total, the first dated here)
  • Mar 6, 2026 Security Advisory (27 in total, the first dated here)
  • Sep 2, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2020-25670
vulnetix vdb fixes CVE-2020-25670

Or 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-2020-25670/fixes/registry"

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References

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