Vulnerability Details : CVE-2020-26269
Potential exploit
In TensorFlow release candidate versions 2.4.0rc*, the general implementation for matching filesystem paths to globbing pattern is vulnerable to an access out of bounds of the array holding the directories. There are multiple invariants and preconditions that are assumed by the parallel implementation of GetMatchingPaths but are not verified by the PRs introducing it (#40861 and #44310). Thus, we are completely rewriting the implementation to fully specify and validate these. This is patched in version 2.4.0. This issue only impacts master branch and the release candidates for TF version 2.4. The final release of the 2.4 release will be patched.
Products affected by CVE-2020-26269
- cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:2.4.0:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26269
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26269
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-26269
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2020-26269
-
https://github.com/tensorflow/tensorflow/commit/8b5b9dc96666a3a5d27fad7179ff215e3b74b67c
Completely rewrite `GetMatchingPaths`. · tensorflow/tensorflow@8b5b9dc · GitHubPatch;Third Party Advisory
-
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9jjw-hf72-3mxw
Heap out of bounds read in filesystem glob matching · Advisory · tensorflow/tensorflow · GitHubExploit;Patch;Third Party Advisory
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