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.
References
| Link | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1941400 | Issue Tracking Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210326-0007/ | Third Party Advisory |
| https://www.samba.org/samba/security/CVE-2020-27840.html | Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/ | Mailing List Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4884 | Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202105-22 | Third Party Advisory |
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Configurations
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Information
Published : 2021-05-12 08:15
Updated : 2021-05-26 12:46
NVD link : CVE-2020-27840
Mitre link : CVE-2020-27840
JSON object : View
CWE
CWE-125
Out-of-bounds Read
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Products Affected
debian
- debian_linux
fedoraproject
- fedora
samba
- samba