CVE-2021-29777: 
IBM Db2 vulnerability analysis and mitigation

CVE-2021-29777 is a vulnerability affecting IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server). The vulnerability was discovered and disclosed in June 2021, affecting multiple versions including Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on all platforms (IBM Security).

Under specific circumstances, when a table is dropped while being accessed in another session, the vulnerability could allow an authenticated user to cause a denial of service. The vulnerability has a CVSS Base score of 5.3 with a vector of CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H, indicating medium severity (IBM Security).

Successful exploitation of this vulnerability could lead to a denial of service condition in the affected Db2 database system. The impact is primarily focused on system availability, with no direct impact on confidentiality or integrity (IBM Security).

IBM has released special builds containing interim fixes for all affected versions. These special builds are available based on the most recent fixpack level for each impacted release: V9.7 FP11, V10.1 FP6, V10.5 FP11, V11.1.4 FP6, and V11.5.5 FP1. The fixes can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability (IBM Security).