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";

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

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

Information

Published : 2022-01-27 10:15

Updated : 2022-02-07 06:38

NVD link : CVE-2021-46102

Mitre link : CVE-2021-46102

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

solana

rbpf

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