CVE-2022-29200
Missing validation causes denial of service in TensorFlow via `LSTMBlockCell`
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
TensorFlow is an open source platform for machine learning. Prior to versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4, the implementation of `tf.raw_ops.LSTMBlockCell` does not fully validate the input arguments. This results in a `CHECK`-failure which can be used to trigger a denial of service attack. The code does not validate the ranks of any of the arguments to this API call. This results in `CHECK`-failures when the elements of the tensor are accessed. Versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4 contain a patch for this issue.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By GitHub_M
- 37 days later
· 37 days later
Published
- 3 years later
· 3 years 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 |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected < 2.6.4
- affected >= 2.7.0rc0, < 2.7.2
- affected >= 2.8.0rc0, < 2.8.1
- affected >= 2.9.0rc0, < 2.9.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPItensorflowGHSA-2vv3-56qg-g2cf (opens in a new tab)
- PyPItensorflow-cpuGHSA-2vv3-56qg-g2cf (opens in a new tab)
- PyPItensorflow-gpuGHSA-2vv3-56qg-g2cf (opens in a new tab)
References (7)
- https://github.com/tensorflow/tensorflow/releases/tag/v2.6.4 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/releases/tag/v2.7.2 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/releases/tag/v2.8.1 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/releases/tag/v2.9.0 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-2vv3-56qg-g2cf (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/tensorflow/tensorflow/commit/803404044ae7a1efac48ba82d74111fce1ddb09a (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/kernels/rnn/lstm_ops.cc (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)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-2vv3-56qg-g2cf (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-29200)Record last updated .