CVE-2021-44504
Using crafted input, an attacker can cause a size variable, stored as an signed int, to equal an extremely large value, which is interpreted as a negative value during a check.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, an attacker can cause a size variable, stored as an signed int, to equal an extremely large value, which is interpreted as a negative value during a check. This value is then used in a memcpy call on the stack, causing a memory segmentation fault.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.60% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-682
- Affected
- fisglobal/gt.m
- Source
- cve@mitre.org
References
- http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.htmlRelease Notes, Third Party Advisory
- https://gitlab.com/YottaDB/DB/YDB/-/issues/828Issue Tracking, Patch, Third Party Advisory
- https://sourceforge.net/projects/fis-gtm/files/Product, Third Party Advisory
- http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.htmlRelease Notes, Third Party Advisory
- https://gitlab.com/YottaDB/DB/YDB/-/issues/828Issue Tracking, Patch, Third Party Advisory
- https://sourceforge.net/projects/fis-gtm/files/Product, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.