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
Mailing lists
Exploits
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 3.11-main 4.11.16-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable