Out-of-bounds Read Affecting ldb package, versions <2:1.2.3-1ubuntu0.2
Threat Intelligence
EPSS
0.63% (80th
percentile)
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Test your applications- Snyk ID SNYK-UBUNTU1804-LDB-1088574
- published 24 Mar 2021
- disclosed 12 May 2021
Introduced: 24 Mar 2021
CVE-2021-20277 Open this link in a new tabHow to fix?
Upgrade Ubuntu:18.04 ldb to version 2:1.2.3-1ubuntu0.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ldb package and not the ldb package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-20277
- https://security.netapp.com/advisory/ntap-20210326-0007/
- https://www.debian.org/security/2021/dsa-4884
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/
- https://security.gentoo.org/glsa/202105-22
- https://bugzilla.redhat.com/show_bug.cgi?id=1941402
- https://www.samba.org/samba/security/CVE-2021-20277.html
- 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/
CVSS Scores
version 3.1