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.
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-8927
- https://github.com/google/brotli/releases/tag/v1.0.9
- https://lists.debian.org/debian-lts-announce/2020/12/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/356JOYTWW4BWSZ42SEFLV7NYHL3S3AEH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TOGTZ2ZWDH662ZNFFSZVL3M5AJXV6JF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J4E265WKWKYMK2RYYSIXBEGZTDY5IQE6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M4VCDOJGL6BK3HB4XRD2WETBPYX2ITF6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMBKACMLSRX7JJSKBTR35UOEP2WFR6QP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQLM7ABVCYJLF6JRPF3M3EBXW63GNC27/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W23CUADGMVMQQNFKHPHXVP7RPZJZNN6I/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WW62OZEY2GHJL4JCOLJRBSRETXDHMWRK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXEQ3GQVELA2T4HNZG7VPMS2HDVXMJRG/
- https://usn.ubuntu.com/4568-1/
- https://www.debian.org/security/2020/dsa-4801
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00108.html
- https://github.com/bitemyapp/brotli2-rs/issues/45
- https://rustsec.org/advisories/RUSTSEC-2021-0131.html
- https://rustsec.org/advisories/RUSTSEC-2021-0132.html
- https://github.com/github/advisory-database/issues/785
- https://github.com/advisories/GHSA-5v8v-66v8-mwm7