Use-after-free in OpenSSL - CVE-2009-1379

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU33339

Use-after-free in OpenSSL - CVE-2009-1379

Published: May 19, 2009 / Updated: August 4, 2020


Vulnerability identifier: #VU33339
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-1379
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing a DTLS packet, as demonstrated by a packet from a server that uses a crafted server certificate. A remote attackers can cause a denial of service (openssl s_client crash) and possibly have unspecified other impact.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Affected software

OpenSSL
openssl (Alpine package)

How to mitigate CVE-2009-1379

Update to version 1.0.0a.

OpenSSL - update to 1.0.0a
openssl (Alpine package) - addressed in versions 0.9.8m-r0, 0.9.8l-r1

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins