CVE Vulnerability

CVE-2021-46102

From version 0.2.14 to 0.2.16 for Solana rBPF, function "relocate" in the file src/elf.rs has an integer overflow bug because the sym.st_value is read directly from ELF file without checking. If the sym.st_value is rather large, an integer overflow is triggered while calculating the variable "addr" via "addr = (sym.st_value + refd_pa) as u64";

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159ee Exploit Third Party Advisory
https://github.com/solana-labs/rbpf/pull/236 Patch Third Party Advisory
https://github.com/solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs#L609-L630 Exploit Third Party Advisory
https://github.com/solana-labs/rbpf/pull/200 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:solana:rbpf:*:*:*:*:*:*:*:*
Information

Published : 2022-01-27 06:15

Updated : 2022-02-07 02:38

NVD link : CVE-2021-46102

Mitre link : CVE-2021-46102

Products Affected
No products.
CWE
CWE-190