VDB

CVE-2021-28116

CVE-2021-28116 PUBLISHED CVSS 3.7 LOW

Reported by mitre · Published March 9, 2021

Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.

Fixed versions

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

PackageEcosystemFixed in
squidAlpine5.2-r0, 5.0.6-r1, 4.17-r0
squid-migration-scriptAmazon Linux7:3.5.20-17.amzn2.7.10
squidAmazon Linux7:3.5.20-17.amzn2.7.10

Risk scores

CVSS 3.1
3.7
CVSS:3.1/AC:H/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N

Affected products

VendorProductVersions
n/an/an/a
alpinesquid0, 0, 0
amazon:2squid-migration-script0
amazon:2squid0
amazon:2squid-sysvinit0
n/an/a*
archsquid0

Timeline

  • Mar 9, 2021 CVE Published
  • Apr 14, 2021 EPSS Score (30 in total, the first dated here)
  • Aug 3, 2024 CVE Updated
  • Mar 10, 2026 Distribution Patch (3 in total, the first dated here)
  • Mar 10, 2026 Security Advisory (7 in total, the first dated here)
  • Aug 6, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2021-28116
vulnetix vdb fixes CVE-2021-28116

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-2021-28116/fixes/registry"

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References

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