CVE-2016-2090
critical
CVSS v3
9.8
CVSS v2
7.5
VIR risk
9.8
Description
Off-by-one vulnerability in the fgetwln function in libbsd before 0.8.2 allows attackers to have unspecified impact via unknown vectors, which trigger a heap-based buffer overflow.
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-2090
Vendor advisory: cve@mitre.org — https://cgit.freedesktop.org/libbsd/commit/?id=c8f0723d2b4520bdd6b9eb7c3e7976de726d7ff7
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 0.8.2-1 |
| debian | bullseye | fixed | 0.8.2-1 |
| debian | forky | fixed | 0.8.2-1 |
| debian | sid | fixed | 0.8.2-1 |
| debian | trixie | fixed | 0.8.2-1 |
| debian | 8.0 | affected | |
| fedora | 24 | affected | |
| fedora | 25 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 16.04 | affected | |
| ubuntu | 18.04 | affected | |
| ubuntu | 19.04 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| freedesktop | libbsd | {"endExcluding":"0.8.2"} | 0.8.2 |
References
- http://www.openwall.com/lists/oss-security/2016/01/28/5
- https://blog.fuzzing-project.org/36-Heap-buffer-overflow-in-fgetwln-function-of-libbsd.html
- https://bugs.freedesktop.org/show_bug.cgi?id=93881
- https://cgit.freedesktop.org/libbsd/commit/?id=c8f0723d2b4520bdd6b9eb7c3e7976de726d7ff7
- https://lists.debian.org/debian-lts-announce/2019/12/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KJE5SPSX7HEKLZ34LUTZLXWPEL2K353/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIQKQ42Z7553D46QY3IMIQKS52QTNIHY/
- https://security.gentoo.org/glsa/201607-13
- https://usn.ubuntu.com/4243-1/
- https://security-tracker.debian.org/tracker/CVE-2016-2090
CWEs
CWE-119
Verify integrity in audit chain (admin only). AS-IS.