CVE-2016-4574 Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded....
HighCVSS 7.5
EPSS 2.8%
- Published
- Updated
- Exploit status
- No public exploit known
Description
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libksba(Debian:12) | < 1.3.4-3 | 1.3.4-3 |
| debian/libksba(Debian:13) | < 1.3.4-3 | 1.3.4-3 |
| debian/libksba(Debian:14) | < 1.3.4-3 | 1.3.4-3 |
| gnupg libksba | <= 1.3.3 | No fix listed |
| Canonical Ubuntu Linux | = 12.04 | No fix listed |
| Canonical Ubuntu Linux | = 14.04 | No fix listed |
| Canonical Ubuntu Linux | = 15.10 | No fix listed |
| Canonical Ubuntu Linux | = 16.04 | No fix listed |
| openSUSE leap | = 42.1 | No fix listed |
| opensuse | = 13.2 | No fix listed |
References
- Debian Security Tracker CVE-2016-4574 vendor-advisory
- git.gnupg.org
- openSUSE-SU-2016:1370 vendor-advisory
- openSUSE-SU-2016:1525 vendor-advisory
- [oss-security] 20160510 Re: Re: CVE request: three issues in libksba mailing-list
- [oss-security] 20160510 Re: CVE request: three issues in libksba mailing-list
- USN-2982-1 vendor-advisory