usbredir: A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in...
CVE-2021-3700 is fixed in 4 products on 1 platform, first by libusbredirhost1 0.7.1-1ubuntu0.18.04.1, released February 24, 2022. It is not reported as exploited. Patch Radar priority: Routine.
A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing large amounts of buffered write data in the case of a slow or blocked destination.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libusbredirhost1 · Ubuntu 18.04.6 LTS (bionic) | 0.7.1-1ubuntu0.18.04.1 | libusbredirhost1 0.7.1-1ubuntu0.18.04.1 | Feb 24, 2022 |
| libusbredirhost1 · Ubuntu 20.04 LTS (focal) | 0.8.0-1ubuntu0.1 | libusbredirhost1 0.8.0-1ubuntu0.1 | Feb 24, 2022 |
| libusbredirparser1 · Ubuntu 18.04.6 LTS (bionic) | 0.7.1-1ubuntu0.18.04.1 | libusbredirparser1 0.7.1-1ubuntu0.18.04.1 | Feb 24, 2022 |
| libusbredirparser1 · Ubuntu 20.04 LTS (focal) | 0.8.0-1ubuntu0.1 | libusbredirparser1 0.8.0-1ubuntu0.1 | Feb 24, 2022 |
| usbredir · Debian 12.15 (bookworm) | 0.11.0-1 | DEBIAN-CVE-2021-3700 | Feb 24, 2022 |
| usbredir · Debian 13.5 (trixie) | 0.11.0-1 | DEBIAN-CVE-2021-3700 | Feb 24, 2022 |
| usbredir · Debian 14 | 0.11.0-1 | DEBIAN-CVE-2021-3700 | Feb 24, 2022 |
| usbredirserver · Ubuntu 18.04.6 LTS (bionic) | 0.7.1-1ubuntu0.18.04.1 | usbredirserver 0.7.1-1ubuntu0.18.04.1 | Feb 24, 2022 |
| usbredirserver · Ubuntu 20.04 LTS (focal) | 0.8.0-1ubuntu0.1 | usbredirserver 0.8.0-1ubuntu0.1 | Feb 24, 2022 |
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