CVE-2020-27840

Name
CVE-2020-27840
Description
A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1941400
MLIST https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html
CONFIRM https://security.netapp.com/advisory/ntap-20210326-0007/
MISC https://www.samba.org/samba/security/CVE-2020-27840.html
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/
DEBIAN https://www.debian.org/security/2021/dsa-4884
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/
Third Party Advisory https://security.gentoo.org/glsa/202105-22

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* samba >= 4.0.0 < 4.12.13
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* samba >= 4.13.0 < 4.13.6
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* samba >= 4.14.0 < 4.14.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
samba edge-main 4.14.2-r0 None fixed
samba edge-main 4.12.9-r0 None possibly vulnerable
samba edge-main 4.12.7-r0 None possibly vulnerable
samba edge-main 4.12.5-r0 None possibly vulnerable
samba edge-main 4.12.2-r0 None possibly vulnerable
samba edge-main 4.11.5-r0 None possibly vulnerable
samba edge-main 4.11.3-r0 None possibly vulnerable
samba edge-main 4.11.2-r0 None possibly vulnerable
samba edge-main 4.10.8-r0 None possibly vulnerable
samba edge-main 4.10.5-r0 None possibly vulnerable
samba edge-main 4.10.3-r0 None possibly vulnerable
samba edge-main 4.8.11-r0 None possibly vulnerable
samba edge-main 4.8.7-r0 None possibly vulnerable
samba edge-main 4.8.4-r0 None possibly vulnerable
samba edge-main 4.7.6-r0 None possibly vulnerable
samba edge-main 4.7.3-r0 None possibly vulnerable
samba edge-main 4.7.0-r0 None possibly vulnerable
samba edge-main 4.6.1-r0 None possibly vulnerable
samba 3.22-main 4.14.2-r0 None fixed
samba 3.22-main 4.12.9-r0 None possibly vulnerable
samba 3.22-main 4.12.7-r0 None possibly vulnerable
samba 3.22-main 4.12.5-r0 None possibly vulnerable
samba 3.22-main 4.12.2-r0 None possibly vulnerable
samba 3.22-main 4.11.5-r0 None possibly vulnerable
samba 3.22-main 4.11.3-r0 None possibly vulnerable
samba 3.22-main 4.11.2-r0 None possibly vulnerable
samba 3.22-main 4.10.8-r0 None possibly vulnerable
samba 3.22-main 4.10.5-r0 None possibly vulnerable
samba 3.22-main 4.10.3-r0 None possibly vulnerable
samba 3.22-main 4.8.11-r0 None possibly vulnerable
samba 3.22-main 4.8.7-r0 None possibly vulnerable
samba 3.22-main 4.8.4-r0 None possibly vulnerable
samba 3.22-main 4.7.6-r0 None possibly vulnerable
samba 3.22-main 4.7.3-r0 None possibly vulnerable
samba 3.22-main 4.7.0-r0 None possibly vulnerable
samba 3.22-main 4.6.1-r0 None possibly vulnerable
samba 3.21-main 4.14.2-r0 None fixed
samba 3.21-main 4.12.9-r0 None possibly vulnerable
samba 3.21-main 4.12.7-r0 None possibly vulnerable
samba 3.21-main 4.12.5-r0 None possibly vulnerable
samba 3.21-main 4.12.2-r0 None possibly vulnerable
samba 3.21-main 4.11.5-r0 None possibly vulnerable
samba 3.21-main 4.11.3-r0 None possibly vulnerable
samba 3.21-main 4.11.2-r0 None possibly vulnerable
samba 3.21-main 4.10.8-r0 None possibly vulnerable
samba 3.21-main 4.10.5-r0 None possibly vulnerable
samba 3.21-main 4.10.3-r0 None possibly vulnerable
samba 3.21-main 4.8.11-r0 None possibly vulnerable
samba 3.21-main 4.8.7-r0 None possibly vulnerable
samba 3.21-main 4.8.4-r0 None possibly vulnerable
samba 3.21-main 4.7.6-r0 None possibly vulnerable
samba 3.21-main 4.7.3-r0 None possibly vulnerable
samba 3.21-main 4.7.0-r0 None possibly vulnerable
samba 3.21-main 4.6.1-r0 None possibly vulnerable
samba 3.20-main 4.14.2-r0 None fixed
samba 3.20-main 4.12.9-r0 None possibly vulnerable
samba 3.20-main 4.12.7-r0 None possibly vulnerable
samba 3.20-main 4.12.5-r0 None possibly vulnerable
samba 3.20-main 4.12.2-r0 None possibly vulnerable
samba 3.20-main 4.11.5-r0 None possibly vulnerable
samba 3.20-main 4.11.3-r0 None possibly vulnerable
samba 3.20-main 4.11.2-r0 None possibly vulnerable
samba 3.20-main 4.10.8-r0 None possibly vulnerable
samba 3.20-main 4.10.5-r0 None possibly vulnerable
samba 3.20-main 4.10.3-r0 None possibly vulnerable
samba 3.20-main 4.8.11-r0 None possibly vulnerable
samba 3.20-main 4.8.7-r0 None possibly vulnerable
samba 3.20-main 4.8.4-r0 None possibly vulnerable
samba 3.20-main 4.7.6-r0 None possibly vulnerable
samba 3.20-main 4.7.3-r0 None possibly vulnerable
samba 3.20-main 4.7.0-r0 None possibly vulnerable
samba 3.20-main 4.6.1-r0 None possibly vulnerable
samba 3.19-main 4.14.2-r0 None fixed
samba 3.19-main 4.12.9-r0 None possibly vulnerable
samba 3.19-main 4.12.7-r0 None possibly vulnerable
samba 3.19-main 4.12.5-r0 None possibly vulnerable
samba 3.19-main 4.12.2-r0 None possibly vulnerable
samba 3.19-main 4.11.5-r0 None possibly vulnerable
samba 3.19-main 4.11.3-r0 None possibly vulnerable
samba 3.19-main 4.11.2-r0 None possibly vulnerable
samba 3.19-main 4.10.8-r0 None possibly vulnerable
samba 3.19-main 4.10.5-r0 None possibly vulnerable
samba 3.19-main 4.10.3-r0 None possibly vulnerable
samba 3.19-main 4.8.11-r0 None possibly vulnerable
samba 3.19-main 4.8.7-r0 None possibly vulnerable
samba 3.19-main 4.8.4-r0 None possibly vulnerable
samba 3.19-main 4.7.6-r0 None possibly vulnerable
samba 3.19-main 4.7.3-r0 None possibly vulnerable
samba 3.19-main 4.7.0-r0 None possibly vulnerable
samba 3.19-main 4.6.1-r0 None possibly vulnerable
samba 3.18-main 4.14.2-r0 None fixed
samba 3.17-main 4.14.2-r0 None fixed
samba 3.12-main 4.12.14-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
samba 3.11-main 4.11.16-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable