CVE-2016-4355: Buffer Overflow
First published: Mon Jun 13 2016(Updated: )
Multiple integer overflows in ber-decoder.c in Libksba before 1.3.3 allow remote attackers to cause a denial of service (crash) via crafted BER data, which leads to a buffer overflow.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GnuPG Libksba | <=1.3.2 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 |
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Reference Links
- http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=aea7b6032865740478ca4b706850a5217f1c3887
- http://www.openwall.com/lists/oss-security/2016/04/29/5
- http://www.openwall.com/lists/oss-security/2016/04/29/8
- http://www.ubuntu.com/usn/USN-2982-1
- https://security.gentoo.org/glsa/201604-04
- http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=aea7b6032865740478ca4b706850a5217f1c3887
Frequently Asked Questions
What is the severity of CVE-2016-4355?
CVE-2016-4355 is rated as a high severity vulnerability due to the potential for remote denial of service attacks.
How do I fix CVE-2016-4355?
To fix CVE-2016-4355, update to Libksba version 1.3.3 or later.
What causes the CVE-2016-4355 vulnerability?
CVE-2016-4355 is caused by multiple integer overflows in the ber-decoder.c file in Libksba.
On which systems does CVE-2016-4355 affect software?
CVE-2016-4355 affects Libksba versions up to 1.3.2 and specific versions of Ubuntu Linux, including 12.04 and 14.04.
Could CVE-2016-4355 lead to data loss?
CVE-2016-4355 primarily leads to a denial of service, which may disrupt service but does not directly cause data loss.
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- vendor/gnupg
- canonical/gnupg libksba
- version/gnupg libksba/1.3.2
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- version/ubuntu linux/12.04
- version/ubuntu linux/14.04