by Kastro
Paper/Archive/CVE-2023-23557

CVE-2023-23557

Facebook Hermes — An error in Hermes' algorithm for copying objects properties prior to commit a00d237346894c6067a594983be6634f4168c9ad could be used by a…

EPSS 0.9%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (NVD, ADP agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 59.4.594 × 2011.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

An error in Hermes' algorithm for copying objects properties prior to commit a00d237346894c6067a594983be6634f4168c9ad could be used by a malicious attacker to execute arbitrary code via type confusion. 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< a00d237346894c6067a594983be6634f4168c9ada00d237346894c6067a594983be6634f4168c9adCNA

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-2023-23557refgithub.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad