servo/rust-smallvec · Security
Double free in smallvec
- GHSA ID
- GHSA-mm7v-vpv8-xfc3
- CVE ID
- CVE-2019-15551
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Attempting to call grow on a spilled SmallVec with a value equal to the current capacity causes it to free the existing data. This performs a double free immediately and may lead to use-after-free on subsequent accesses to the SmallVec contents. An attacker that controls the value passed to grow may exploit this flaw to obtain memory contents or gain remote code execution.
CWEs
- CWE-415 · Double Free
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-15551 ↗
- https://github.com/servo/rust-smallvec/issues/148 ↗
- https://rustsec.org/advisories/RUSTSEC-2019-0009.html ↗
- https://github.com/servo/rust-smallvec/issues/149 ↗
- https://github.com/servo/rust-smallvec/commit/c20cfa8584e649f00dc0767ab6fad63a3f59a296 ↗
- https://github.com/servo/rust-smallvec/commit/f96322b9243405cc82701cc73f1b19313b413ab4 ↗
- https://github.com/advisories/GHSA-mm7v-vpv8-xfc3 ↗