CVE-2020-8927
Published: 15 September 2020
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
brotli Launchpad, Ubuntu, Debian |
bionic |
Released
(1.0.3-1ubuntu1.3)
|
| focal |
Released
(1.0.7-6ubuntu0.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1.0.9-1)
|
|
| xenial |
Released
(1.0.3-1ubuntu1~16.04.2)
|
|
|
Patches: upstream: https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | Low |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |