CVE-2012-4559
Last modified
CVE-2012-4559 is a vulnerability of currently unknown severity. Multiple double free vulnerabilities in the (1) agent_sign_data function in agent.c, (2) channel_request function in channels.c, (3) ssh_userauth_pubkey function in auth.c, (4) sftp_parse_attr_3 function in sftp.c, and (5) try_publickey_from_file function in keyfiles.c in libssh before 0.5.3 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.. EPSS estimates a 5.18% chance of exploitation in the next 30 days.
Description
Multiple double free vulnerabilities in the (1) agent_sign_data function in agent.c, (2) channel_request function in channels.c, (3) ssh_userauth_pubkey function in auth.c, (4) sftp_parse_attr_3 function in sftp.c, and (5) try_publickey_from_file function in keyfiles.c in libssh before 0.5.3 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libssh | Libssh | <= 0.5.2 |
| Libssh | Libssh | 0.4.7 |
| Libssh | Libssh | 0.4.8 |
| Libssh | Libssh | 0.5.0 |
| Libssh | Libssh | 0.5.1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2012-4559?
How severe is CVE-2012-4559?
How do I fix CVE-2012-4559?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2012
- CVE-2012-4553Drupal 7.x before 7.16 allows remote attackers to obtain sen…
- CVE-2012-4554The OpenID module in Drupal 7.x before 7.16 allows remote Op…
- CVE-2012-4555The token processing system (pki-tps) in Red Hat Certificate…
- CVE-2012-4556The token processing system (pki-tps) in Red Hat Certificate…
- CVE-2012-4557The mod_proxy_ajp module in the Apache HTTP Server 2.2.12 th…
- CVE-2012-4558Multiple cross-site scripting (XSS) vulnerabilities in the b…
- CVE-2012-4560Multiple buffer overflows in libssh before 0.5.3 allow remot…
- CVE-2012-4561The (1) publickey_make_dss, (2) publickey_make_rsa, (3) sign…
- CVE-2012-4562Multiple integer overflows in libssh before 0.5.3 allow remo…
- CVE-2012-4563Cross-site scripting (XSS) vulnerability in Google Web Toolk…
- CVE-2012-4564ppm2tiff does not check the return value of the TIFFScanline…
- CVE-2012-4565The tcp_illinois_info function in net/ipv4/tcp_illinois.c in…
Are you affected by CVE-2012-4559?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST