SB2019112825 - Double Free in py3-psutil (Alpine package)
Published: November 28, 2019
Security Bulletin ID
SB2019112825
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Double Free (CVE-ID: CVE-2019-18874)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists because of refcount mishandling within a "while" or "for" loop that converts system data into a Python object. A remote attacker can trigger double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=3b5d75ca3de5f2826c0c972f27cc372a51de9c78
- https://git.alpinelinux.org/aports/commit/?id=50796da3f3e8eadf80cacb306a27ec6bd6cf2181
- https://git.alpinelinux.org/aports/commit/?id=77cd14961576b0ae7a63f47dc80331878237ad7b
- https://git.alpinelinux.org/aports/commit/?id=a54e52a4de36c8c484608665e7849b1416b6bbee