Use-after-free in GnuPG - CVE-2015-1606

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 crafted keyring file. A remote attackers can cause a denial of service (invalid read and use-after-free).

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

Affected software

How to mitigate CVE-2015-1606

External References

• http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=f0f71a721ccd7ab9e40b8b6b028b59632c0cc648
• http://www.debian.org/security/2015/dsa-3184
• http://www.openwall.com/lists/oss-security/2015/02/13/14
• http://www.openwall.com/lists/oss-security/2015/02/14/6
• http://www.securitytracker.com/id/1031876
• https://blog.fuzzing-project.org/5-Multiple-issues-in-GnuPG-found-through-keyring-fuzzing-TFPA-0012015.html

Related Security Bulletins

• Multiple vulnerabilities in GNU GnuPG
• Use-after-free in gnupg1 (Alpine package)
• Use-after-free in gnupg (Alpine package)
• Amazon Linux AMI update for gnupg2