CVE-2021-44493

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-04-15 · updated 2026-06-17
Weakness: CWE-120

Description

An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an attacker can cause a call to $Extract to force an signed integer holding the size of a buffer to take on a large negative number, which is then used as the length of a memcpy call that occurs on the stack, causing a buffer overflow.

Affected products

Fisglobal Gt.M: through 7.0-000
Yottadb: through 1.32

References

http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.html
https://gitlab.com/YottaDB/DB/YDB/-/issues/828
https://sourceforge.net/projects/fis-gtm/files/
http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.html
https://gitlab.com/YottaDB/DB/YDB/-/issues/828
https://sourceforge.net/projects/fis-gtm/files/

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