CVE-2021-31873: Buffer Overflow
An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
alpine/klibcto a version that resolves this vulnerability.Fixed in 2.0.9-r0
Event History
Frequently Asked Questions
What is the severity of CVE-2021-31873?
CVE-2021-31873 is considered a critical vulnerability due to the potential for an integer overflow leading to a heap buffer overflow.
How do I fix CVE-2021-31873?
To mitigate CVE-2021-31873, upgrade your klibc to version 2.0.9 or later.
Which versions of klibc are affected by CVE-2021-31873?
CVE-2021-31873 affects klibc versions prior to 2.0.9.
What kind of issue is represented by CVE-2021-31873?
CVE-2021-31873 represents an integer overflow issue in the malloc() function that may result in a heap buffer overflow.
Which operating systems are impacted by CVE-2021-31873?
CVE-2021-31873 affects Debian Linux version 9.0 when using the vulnerable versions of klibc.