CVE-2021-3912: cloudflare octorpki Uncontrolled Resource Consumption
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-3912DEBIAN-CVE-2021-3912GHSA-g9wh-3vrx-r7hgGO-2022-0253
Published 11-11-2021Last modified 16-09-2024
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Vulnerability summary
CVE-2021-3912 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in cloudflare octorpki. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.4% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.85%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 11-11-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash).
CVSS metrics
6 scores · 5 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSources5 sources · 4.2–6.5
- CVE.orgCNA4.2MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated4.2MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · GoEcosystem advisory · calculated4.2MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:HDiffers
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.85%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
0.00 pp
From 0.85% on 19-09-2026
19-09-202619-10-2026
EPSS score0.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Affected systems
Debian2 products
- cfrpki< 1.4.0-1
- debian_linuxEOL11.0
Cloudflare1 product
- octorpki≥ unspecified, < 1.4.0 | < 1.3.0
Github.com/cloudflare1 product
- cfrpki< 1.4.0
Ubuntu1 product
- cfrpki< 1.4.2-1
4 vendors · 5 products
References
9 links- github.com/cloudflare/cfrpki/security/advisories/GHSA-g9wh-3vrx-r7hgX Refsource MISCREPORTWEBThird Party Advisory
