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CVE-2021-4213A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory,…
- 7.5HighCVSS base score
- 1.8%Exploitation in 30 daysEPSS · top 21% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. This flaw allows an attacker to force the invocation of an out-of-memory process, causing a denial of service.
Timeline
ID reserved
By redhat
- 7 months later
· 7 months later
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.8% · top 21% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
JSS
- affected Fixed in v5.2.0-beta1
References
References5
- https://bugzilla.redhat.com/show_bug.cgi?id=2042900 (opens in a new tab)x_refsource_MISCx_transferred
- https://access.redhat.com/security/cve/CVE-2021-4213 (opens in a new tab)x_refsource_MISCx_transferred
- https://security-tracker.debian.org/tracker/CVE-2021-4213 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/dogtagpki/jss/commit/5922560a78d0dee61af8a33cc9cfbf4cfa291448 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/dogtagpki/jss/commit/3aabe0e9d59b0a42e68ac8cd0468f9c5179967d2 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-34071 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-4213)Record last updated .