Out-of-bounds Read in Google Tensorflow
CVE-2020-15208
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, when determining the common dimension size of two tensors, TFLite uses a `DCHECK` which is no-op outside of debug compilation modes. Since the function always returns the dimension of the first tensor, malicious attackers can craft cases where this is larger than that of the second tensor. In turn, this would result in reads/writes outside of bounds since the interpreter will wrongly assume that there is enough data in both tensors. The issue is patched in commit 8ee24e7949a203d234489f9da2c5bf45a7d5157d, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Google Tensorflow
- Tensorflow — versions < 1.15.4, >= 2.0.0, < 2.0.3, >= 2.1.0, < 2.1.2
- openSUSE Leap — versions 15.2
Weakness classification (CWE)
References
- github.com/tensorflow/tensorflow/releases/tag/v2.3.1 (Third Party Advisory)
- github.com/tensorflow/tensorflow/security/advisories/GHSA-mxjj-953w-2c2v (Exploit, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/8ee24e7949a203d234489f9da2c5bf45a7d5157d (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15208?
- CVE-2020-15208 is a high-severity vulnerability in Google Tensorflow, classified under Out-of-bounds Read. CVSS score: 7.4/10. Published 2020-09-25.
- How severe is CVE-2020-15208?
- High severity. CVSS v3 base score is 7.4 out of 10.