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CVE-2020-27840

CVE-2020-27840

EPSS 3.8%CWE-125
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 3.8%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
12 May 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
Affected products
n/a · samba

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References
https://bugzilla.redhat.com/show_bug.cgi?id=1941400https://lists.debian.org/debian-lts-announce/2021/03/msg00036.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/https://security.gentoo.org/glsa/202105-22https://security.netapp.com/advisory/ntap-20210326-0007/https://www.debian.org/security/2021/dsa-4884https://www.samba.org/samba/security/CVE-2020-27840.html