Description
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
References (3)
Core 3
Core References
Exploit, Issue Tracking, Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=30068
Vendor Advisory
https://security.netapp.com/advisory/ntap-20230302-0010/
Mailing List mailing-list
http://www.openwall.com/lists/oss-security/2023/02/10/1
Scores
CVSS v3
9.8
EPSS
0.0015
EPSS Percentile
35.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (1)
gnu/glibc
2.37
Published
Feb 03, 2023
Tracked Since
Feb 18, 2026