by Kastro
Paper/Archive/CVE-2023-30470

CVE-2023-30470

Facebook Hermes — A use-after-free related to unsound inference in the bytecode generation when optimizations are enabled for Hermes prior to commit da8990…

EPSS 1%CVSS 9.8
critical.is priorityof 100
43
CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 69.4.694 × 2013.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

A use-after-free related to unsound inference in the bytecode generation when optimizations are enabled for Hermes prior to commit da8990f737ebb9d9810633502f65ed462b819c09 could have been used by an attacker to achieve remote code execution. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

Affected

ProductAffectedFixed inSource
Hermes< da8990f737ebb9d9810633502f65ed462b819c09da8990f737ebb9d9810633502f65ed462b819c09CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

reffacebook.com/security/advisories/cve-2023-30470refgithub.com/facebook/hermes/commit/da8990f737ebb9d9810633502f65ed462b819c09