Vulnerability Monitor

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CVE-2016-2090

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.

Published

2017-01-13T16:59:00.167

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	fedoraproject	fedora	24	Yes
Operating System	fedoraproject	fedora	25	Yes
Application	freedesktop	libbsd	< 0.8.2	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.04	Yes

References

http://www.openwall.com/lists/oss-security/2016/01/28/5 Mailing List, Third Party Advisory ([email protected])
https://blog.fuzzing-project.org/36-Heap-buffer-overflow-in-fgetwln-function-of-libbsd.html Third Party Advisory ([email protected])
https://bugs.freedesktop.org/show_bug.cgi?id=93881 Issue Tracking, Third Party Advisory ([email protected])
https://cgit.freedesktop.org/libbsd/commit/?id=c8f0723d2b4520bdd6b9eb7c3e7976de726d7ff7 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2019/12/msg00036.html Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KJE5SPSX7HEKLZ34LUTZLXWPEL2K353/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIQKQ42Z7553D46QY3IMIQKS52QTNIHY/ ([email protected])
https://security.gentoo.org/glsa/201607-13 Third Party Advisory ([email protected])
https://usn.ubuntu.com/4243-1/ Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/01/28/5 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blog.fuzzing-project.org/36-Heap-buffer-overflow-in-fgetwln-function-of-libbsd.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.freedesktop.org/show_bug.cgi?id=93881 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cgit.freedesktop.org/libbsd/commit/?id=c8f0723d2b4520bdd6b9eb7c3e7976de726d7ff7 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2019/12/msg00036.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KJE5SPSX7HEKLZ34LUTZLXWPEL2K353/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIQKQ42Z7553D46QY3IMIQKS52QTNIHY/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201607-13 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4243-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)