Samsung Mobile Devices Out-of-Bounds Read Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-06-29

[ Description ]Official description

Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer.

CISA: 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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 20 Jul 2023): Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• security.samsungmobile.com/securityUpdate.smsbVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource