CVE-2024-41434

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-09-03 · updated 2026-06-17
Weakness: CWE-400

Description

PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component (*Column).GetDecimal. This allows attackers to cause a Denial of Service (DoS) via a crafted input to the 'RemoveUnnecessaryFirstRow', it will check the expression between 'Agg' and 'GroupBy', but does not check the return type. NOTE: PingCAP disputes this, arguing that reproduction did not cause the security impact of service interruption to other users. They maintain it is a complex query bug in the product but not a DoS.

Affected products

pingcap tidb: 8.1.0

References

https://gist.github.com/ycybfhb/4aa6809695b9e8a1cd1429e597c17517
https://github.com/pingcap/tidb/issues/53733

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