CVE-2016-6263 The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.
HighCVSS 7.5
EPSS 4.4%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libidn(Debian:12) | < 1.33-1 | 1.33-1 |
| debian/libidn(Debian:13) | < 1.33-1 | 1.33-1 |
| debian/libidn(Debian:14) | < 1.33-1 | 1.33-1 |
| GNU libidn | <= 1.32 | No fix listed |
| alpine/libidn(Alpine:v3.10) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.11) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.12) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.13) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.14) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.15) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.16) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.17) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.18) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.19) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.2) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.20) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.21) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.22) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.23) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.24) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.3) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.4) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.5) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.6) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.7) | < 1.33-r0 | 1.33-r0 |
Show 2 more
| Product | Affected versions | Fixed in |
|---|---|---|
| alpine/libidn(Alpine:v3.8) | < 1.33-r0 | 1.33-r0 |
| alpine/libidn(Alpine:v3.9) | < 1.33-r0 | 1.33-r0 |
References
- Debian Security Tracker CVE-2016-6263 vendor-advisory
- git.savannah.gnu.org issue-tracking patch
- openSUSE-SU-2016:1924 third-party-advisory vendor-advisory
- openSUSE-SU-2016:2135 third-party-advisory vendor-advisory
- DSA-3658 vendor-advisory
- [oss-security] 20160720 CVE request: multiple issues fixed in GNU libidn 1.33 mailing-list third-party-advisory
- [oss-security] 20160721 Re: CVE request: multiple issues fixed in GNU libidn 1.33 mailing-list third-party-advisory
- 92070 third-party-advisory vdb-entry
- USN-3068-1 third-party-advisory vendor-advisory
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list
- [help-libidn] 20160720 Libidn 1.33 released mailing-list vendor-advisory
- GLSA-201908-06 vendor-advisory
- security.alpinelinux.org vendor-advisory