GHSA-6757-jp84-gxfx

Source

https://github.com/advisories/GHSA-6757-jp84-gxfx

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/04/GHSA-6757-jp84-gxfx/GHSA-6757-jp84-gxfx.json

Aliases

Published

2021-04-20T16:14:24Z

Modified

2024-02-16T08:20:04.342586Z

Details

A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.

References

Affected packages

PyPI / pyyaml

Package

Name: pyyaml

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0The exact introduced commit is unknown

Fixed

5.3.1

Affected versions

3.*

3.01

3.02

3.03

3.04

3.05

3.06

3.07

3.08

3.09

3.10

3.11

3.12

3.13b1

3.13rc1

3.13

4.*

4.2b1

4.2b2

4.2b4

5.*

5.1b1

5.1b3

5.1b5

5.1b7

5.1

5.1.1

5.1.2

5.2b1

5.2

5.3b1

5.3

Ecosystem specific

{
    "affected_functions": [
        "yaml.load",
        "yaml.full_load",
        "yaml.FullLoader"
    ]
}