CVE-2021-23463
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
Description
Improper Restriction of XML External Entity Reference in com.h2database:h2.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | com.h2database:h2 | >=1.4.198,<2.0.202 | 2.0.202 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23463
- https://github.com/h2database/h2database/issues/3195
- https://github.com/h2database/h2database/pull/3199
- https://github.com/h2database/h2database/pull/3199#issuecomment-1002830390
- https://github.com/boris-unckel/h2database/commit/f9ad6aef2bfa59eba2b4d3e7c4c32d2cce8e8b05
- https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3
- https://github.com/h2database/h2database
- https://security.netapp.com/advisory/ntap-20230818-0010
- https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security-tracker.debian.org/tracker/CVE-2021-23463
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.