libklibc: An issue was discovered in klibc before 2.0.9
CVE-2021-31870 is fixed in 2 products on 1 platform, first by klibc-utils 2.0.4-9ubuntu2.1, released April 29, 2021. It is not reported as exploited. Patch Radar priority: Routine.
An issue was discovered in klibc before 2.0.9. Multiplication in the calloc() function may result in an integer overflow and a subsequent heap buffer overflow.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| klibc-utils · Ubuntu 18.04.6 LTS (bionic) | 2.0.4-9ubuntu2.1 | klibc-utils 2.0.4-9ubuntu2.1 | Apr 29, 2021 |
| klibc-utils · Ubuntu 20.04 LTS (focal) | 2.0.7-1ubuntu5.1 | klibc-utils 2.0.7-1ubuntu5.1 | Apr 29, 2021 |
| libklibc · Ubuntu 18.04.6 LTS (bionic) | 2.0.4-9ubuntu2.1 | libklibc 2.0.4-9ubuntu2.1 | Apr 29, 2021 |
| libklibc · Ubuntu 20.04 LTS (focal) | 2.0.7-1ubuntu5.1 | libklibc 2.0.7-1ubuntu5.1 | Apr 29, 2021 |
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