CVE-2021-20277

EPSS 4.3%CWE-125

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 4.3%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's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. 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=1941402 https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html https://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/202105-22 https://security.netapp.com/advisory/ntap-20210326-0007/https://www.debian.org/security/2021/dsa-4884 https://www.samba.org/samba/security/CVE-2021-20277.html