CVE-2017-8386

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-06-01 · updated 2026-06-17

Description

git-shell in git before 2.4.12, 2.5.x before 2.5.6, 2.6.x before 2.6.7, 2.7.x before 2.7.5, 2.8.x before 2.8.5, 2.9.x before 2.9.4, 2.10.x before 2.10.3, 2.11.x before 2.11.2, and 2.12.x before 2.12.3 might allow remote authenticated users to gain privileges via a repository name that starts with a - (dash) character.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 16.10, 17.04
Debian Linux: 8.0
Fedoraproject Fedora: 24, 25, 26
Git-Shell: all versions
openSUSE Leap: 42.1

References

http://lists.opensuse.org/opensuse-updates/2017-05/msg00090.html
http://public-inbox.org/git/xmqq8tm5ziat.fsf%40gitster.mtv.corp.google.com/
http://www.debian.org/security/2017/dsa-3848
http://www.securityfocus.com/bid/98409
http://www.securitytracker.com/id/1038479
http://www.ubuntu.com/usn/USN-3287-1
https://access.redhat.com/errata/RHSA-2017:2004
https://access.redhat.com/errata/RHSA-2017:2491
https://insinuator.net/2017/05/git-shell-bypass-by-abusing-less-cve-2017-8386/
https://kernel.googlesource.com/pub/scm/git/git/+/3ec804490a265f4c418a321428c12f3f18b7eff5
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3ISHYFLM2ACYHHY3JHCLF75X7UF4ZMDM/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPYRN7APMHY4ZFDPAKD22J5R4QJFY2JP/

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