Process crash via unchecked payload-length overflow
Published Oct 25, 2023 · Updated Sep 10, 2024
Denial of service in Stellar Development Foundation stellar-strkey before 0.0.8 allows remote attackers to crash a process via crafted input. SignedPayload::from_payload reads a four-byte inner length and performs padding arithmetic without first limiting it to 64, so 0xffffffff exceeds u32::MAX and triggers a Rust panic. Exploitation requires attacker-controlled bytes to reach that library method; the demonstrated consequence is termination of the calling process, not data access or modification.
Summary
What happened
Denial of service in Stellar Development Foundation stellar-strkey before 0.0.8 allows remote attackers to crash a process via crafted input. SignedPayload::from_payload reads a four-byte inner length and performs padding arithmetic without first limiting it to 64, so 0xffffffff exceeds u32::MAX and triggers a Rust panic. Exploitation requires attacker-controlled bytes to reach that library method; the demonstrated consequence is termination of the calling process, not data access or modification.
The record
- CVE
- CVE-2023-46135
- Published
- Oct 25, 2023
- Updated
- Sep 10, 2024
- Vendor
- Stellar Development Foundation
- Product
- stellar-strkey
- Classifications
- CWE-248, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 25, 2023CVE publishedPublication date reported by the CVE source.
- Sep 10, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <0.0.8
- Affected versionversion=< 0.0.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- SignedPayload::from_payload panic reproducerproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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