CVE-2023-6246
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
Published:Jan 30, 2024
Last Modified:May 12, 2026
EPS:Jan 31, 2024
EPSS Score:0.25481
CVSS Score:8.4
Affected Products
Vendor
Product
Action
Vendor
Fedoraproject
Product
Fedora
Fedoraproject
Fedora
Vendor
Gnu
Product
Glibc
Gnu
Glibc
Vendor
Redhat
Product
Enterprise Linux
Redhat
Enterprise Linux
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
