Authenticated stack overflow via unchecked digest length
Published Mar 11, 2022 · Updated Nov 4, 2025
A stack-based buffer overflow in PJSIP PJPROJECT 2.12 and earlier allows remote authenticated users to crash services via hashed digest credentials. The pjsip_auth_create_digest() function copies cred_info data into fixed-size ha1 storage using the supplied length without enforcing the 32-byte digest bound. Exploitation requires an application to accept PJSIP_CRED_DATA_DIGEST credentials and expose attacker-controlled credential data; the documented consequence is process interruption or memory corruption, with no specific code-execution path established.
Summary
What happened
A stack-based buffer overflow in PJSIP PJPROJECT 2.12 and earlier allows remote authenticated users to crash services via hashed digest credentials. The pjsip_auth_create_digest() function copies cred_info data into fixed-size ha1 storage using the supplied length without enforcing the 32-byte digest bound. Exploitation requires an application to accept PJSIP_CRED_DATA_DIGEST credentials and expose attacker-controlled credential data; the documented consequence is process interruption or memory corruption, with no specific code-execution path established.
The record
- CVE
- CVE-2022-24754
- Published
- Mar 11, 2022
- Updated
- Nov 4, 2025
- Vendor
- PJSIP
- Product
- PJPROJECT
- Classifications
- CWE-120, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 11, 2022CVE publishedPublication date reported by the CVE source.
- Nov 4, 2025Record 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=<= 2.12
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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