CVE-2021-25487: Samsung Mobile Devices Out-of-Bounds Read Vulnerability

CISA Known Exploited Vulnerability (KEV)

Description

Samsung mobile devices contain an out-of-bounds read vulnerability within the modem interface driver due to a lack of boundary checking of a buffer in set_skb_priv(), leading to remote code execution by dereference of an invalid function pointer.

Required action (CISA)

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

Notes

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10; https://nvd.nist.gov/vuln/detail/CVE-2021-25487

Weakness behind it

CISA records this vulnerability as an instance of CWE-125. From there the chain continues into CAPEC attack patterns and ATT&CK techniques, all inside this corpus.

References

• NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25487
• KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog