Debian Security Bug TrackerDEBIANCVE:CVE-2023-6779CVE-2023-6779
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
AI Score
Confidence
High
EPSS
Percentile
50.2%
An off-by-one 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 these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | glibc | < 2.36-9+deb12u4 | glibc_2.36-9+deb12u4_all.deb |
| Debian | 11 | all | glibc | < 2.31-13+deb11u11 | glibc_2.31-13+deb11u11_all.deb |
| Debian | 999 | all | glibc | < 2.37-15 | glibc_2.37-15_all.deb |
| Debian | 13 | all | glibc | < 2.37-15 | glibc_2.37-15_all.deb |
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
AI Score
Confidence
High
EPSS
Percentile
50.2%