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No exploitation reportedFix available

CVE-2021-37136

No exploitation reported by the sources we read.

  • Published2021-10-19
  • WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

Timeline

dates in UTC
  1. 2021-10-1915:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-37136?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-37136?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Oracle banking digital experience
BranchAffectedFixed in
18.1= 18.1no fix published
18.2= 18.2no fix published
18.3= 18.3no fix published
19.1= 19.1no fix published
19.2= 19.2no fix published
20.1= 20.1no fix published
21.1= 21.1no fix published
Oracle banking apis
BranchAffectedFixed in
18.x≥ 18.1, ≤ 18.3no fix published
19.1= 19.1no fix published
19.2= 19.2no fix published
20.1= 20.1no fix published
21.1= 21.1no fix published
Oracle peoplesoft enterprise peopletools
BranchAffectedFixed in
8.48= 8.48no fix published
8.57= 8.57no fix published
8.58= 8.58no fix published
8.59= 8.59no fix published

19 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2022:2217 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Logging Security and Bug update Release 5.3.7

  • RHSA-2022:2218 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Openshift Logging Security and Bug update Release (5.2.10)

  • RHSA-2022:2216 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Logging Security and Bug update Release 5.4.1

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2022:2217 · 3 productsFor OpenShift Container Platform 4.10 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.10/release_notes/ocp-4-10-release-not…
  2. Vendor fix Red Hat Product Security RHSA-2022:2218 · 3 productsFor OpenShift Container Platform 4.8 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.8/release_notes/ocp-4-8-release-notes.…
  3. Vendor fix Red Hat Product Security RHSA-2022:2216 · 4 productsFor OpenShift Container Platform 4.9 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.9/release_notes/ocp-4-9-release-notes.…

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-10-08
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-400read 2026-10-23
  • NVDweakness (CWE)CWE-400read 2026-10-23
  • FIRST EPSSEPSS score5.9 %2026-10-22
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2021-10-19
Last Modified
2026-10-08
NVD status
Modified

Frequently asked questions

What is CVE-2021-37136?

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

Is CVE-2021-37136 actively exploited?

Active exploitation of CVE-2021-37136 has not been confirmed. Its EPSS score was 5.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-37136?

CVE-2021-37136 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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