GHSA-4xc9-8hmq-j652 CVE-2024-32972 GO-2024-2819
go-ethereum vulnerable to DoS via malicious p2p message
- Severity
- 7.5 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.85%
- Chance of exploitation in the next 30 days. Higher than 58.05% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-400 Uncontrolled Resource Consumption
- Fix
1.13.15- Upgrade github.com/ethereum/go-ethereum to this version or later
Description
Impact
A vulnerable node can be made to consume very large amounts of memory when handling specially crafted p2p messages sent from an attacker node.
In order to carry out the attack, the attacker establishes a peer connections to the victim, and sends a malicious GetBlockHeadersRequest message with a count of 0, using the ETH protocol.
In descendants := chain.GetHeadersFrom(num+count-1, count-1), the value of count-1 is passed to the function GetHeadersFrom(number, count uint64) as parameter count. Due to integer overflow, UINT64_MAX value is then passed as the count argument to function GetHeadersFrom(number, count uint64). This allows an attacker to bypass maxHeadersServe and request all headers from the latest block back to the genesis block.
Patches
The fix has been included in geth version 1.13.15 and onwards.
The vulnerability was patched in: https://github.com/ethereum/go-ethereum/pull/29534
Workarounds
No workarounds have been made public.
References
No more information is released at this time.
Credit
This issue was disclosed responsibly by DongHan Kim via the Ethereum bug bounty program. Thank you for your cooperation.
Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/ethereum/go-ethereum | < 1.13.15 |
1.13.15 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
github.com/ethereum/go-ethereum Go → 1.13.15
- go
go get github.com/ethereum/go-ethereum@v1.13.15 && go mod tidy
Severity breakdown
CVSS 3.1 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Weakness
CWE-400: Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
How to prevent it
- Architecture and Design: Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.
- Architecture and Design: Mitigation of resource exhaustion attacks requires that the target system either: recognizes the attack and denies that user further access for a given amount of time, or uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed. The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question. The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
- Architecture and Design: Ensure that protocols have specific limits of scale placed on them.
- Implementation: Ensure that all failures in resource allocation place the system into a safe posture.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-m6j8-rg6r-7mv8 Go Ethereum Improperly Validates the ECIES Public Key in RLPx Handshake | High | Also affects github.com/ethereum/go-ethereum |
| GHSA-2gjw-fg97-vg3r Go Ethereum affected by DoS via malicious p2p message | High | Also affects github.com/ethereum/go-ethereum |
| GHSA-689v-6xwf-5jf3 Go Ethereum affected by DoS via malicious p2p message | High | Also affects github.com/ethereum/go-ethereum |
| GHSA-mq3p-rrmp-79jg go-ethereum is vulnerable to high CPU usage leading to DoS via malicious p2p message | High | Also affects github.com/ethereum/go-ethereum |
| GHSA-mr7q-c9w9-wh4h go-ethereum is vulnerable to DoS via malicious p2p message affecting a vulnerable node | High | Also affects github.com/ethereum/go-ethereum |
| GHSA-q26p-9cq4-7fc2 Go Ethereum vulnerable to DoS via malicious p2p message | Medium | Also affects github.com/ethereum/go-ethereum |
| GHSA-v9jh-j8px-98vq go-ethereum vulnerable to denial of service via crafted GraphQL query | High | Also affects github.com/ethereum/go-ethereum |
| GHSA-ppjg-v974-84cm Go-Ethereum vulnerable to denial of service via malicious p2p message | High | Also affects github.com/ethereum/go-ethereum |
Credits: DongHan Kim
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