Security readout for executives and security teams
Plain-English summary
CVE-2021-44489 is a crash-risk flaw in YottaDB through r1.32 and V7.0-000. Crafted input can trigger an integer underflow that leads to a segmentation fault, causing the application to crash. The public bundle does not provide CVSS scoring, exploitation evidence, or a named fix.
Executive priority
Prioritize based on business dependence on YottaDB-backed services. This appears most urgent where service availability matters and external input reaches affected systems. Lack of CVSS and exploit evidence lowers certainty, but crash potential justifies inventory and vendor-guided remediation.
Technical view
The issue is described in sr_port/op_fnj3.c, where crafted input can underflow the size passed to memset in op_fnj3. The reported outcome is segmentation fault and application crash. Available evidence supports denial-of-service impact, not code execution or data exposure.
Likely exposure
Exposure is likely limited to organizations running YottaDB through r1.32 or V7.0-000 where untrusted or attacker-controlled input can reach the affected code path. The provided affected-product metadata is incomplete, so confirm against vendor records.
Exploitation context
The source bundle does not cite active exploitation, KEV listing, public exploit availability, or exploitation in the wild. Treat exploitation status as unconfirmed. The described attacker outcome is application crash after crafted input, not confirmed compromise.
Researcher notes
The public record is sparse: no CVSS, CWE, CPE, or confirmed fixed version is included in the supplied bundle. The strongest technical signal is the YottaDB issue reference and CVE description naming integer underflow into memset size handling in op_fnj3.
Mitigation direction
- Inventory YottaDB deployments and versions across servers and containers.
- Flag YottaDB through r1.32 and V7.0-000 for review.
- Check YottaDB issue 828 and vendor release notes for fixed versions.
- Limit untrusted input reaching affected YottaDB-backed application paths.
- Monitor dependent services for unexplained crashes and recovery failures.
Validation and detection
- Confirm installed YottaDB versions on all relevant hosts and images.
- Identify applications using YottaDB that process external input.
- Review crash logs for segmentation faults involving affected YottaDB components.
- Check vendor issue 828 for remediation status before change planning.
- Verify compensating controls around exposed application input paths.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-44489 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://gitlab.com/YottaDB/DB/YDB/-/issues/828CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.