Buffer overflow in Google Tensorflow
CVE-2020-15207
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, to mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. However, the only check that the converted index is now valid is only present in debug builds. If the `DCHECK` does not trigger, then code execution moves ahead with a negative index. This, in turn, results in accessing data out of bounds which results in segfaults and/or data corruption. The issue is patched in commit 2d88f470dea2671b430884260f3626b1fe99830a, 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 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (68.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · 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-q4qf-3fc6-8x34 (Exploit, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/2d88f470dea2671b430884260f3626b1fe99830a (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-2020-15207?
- CVE-2020-15207 is a high-severity vulnerability in Google Tensorflow, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.7/10. Published 2020-09-25.
- How severe is CVE-2020-15207?
- High severity. CVSS v3 base score is 8.7 out of 10.