CVE-2016-4353: Input Validation
First published: Mon Jun 13 2016(Updated: )
ber-decoder.c in Libksba before 1.3.3 does not properly handle decoder stack overflows, which allows remote attackers to cause a denial of service (abort) via crafted BER data.
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=07116a314f4dcd4d96990bbd74db95a03a9f650a
- 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=07116a314f4dcd4d96990bbd74db95a03a9f650a
Frequently Asked Questions
What is the severity of CVE-2016-4353?
CVE-2016-4353 has a moderate severity rating due to its potential to cause denial of service.
How do I fix CVE-2016-4353?
To fix CVE-2016-4353, upgrade Libksba to version 1.3.3 or later.
What systems are affected by CVE-2016-4353?
CVE-2016-4353 affects Libksba versions prior to 1.3.3 and certain versions of Ubuntu Linux 12.04 and 14.04.
What type of vulnerability is CVE-2016-4353?
CVE-2016-4353 is a denial of service vulnerability caused by improper handling of decoder stack overflows.
Can CVE-2016-4353 be exploited remotely?
Yes, CVE-2016-4353 can be exploited remotely through crafted BER data.
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- vendor/gnupg
- canonical/gnupg libksba
- version/gnupg libksba/1.3.2
- vendor/canonical
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- version/ubuntu linux/12.04
- version/ubuntu linux/14.04