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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-6780
HistoryJan 31, 2024 - 2:15 p.m.

CVE-2023-6780

2024-01-3114:15:48
Debian Security Bug Tracker
security-tracker.debian.org
21
cve-2023-6780
glibc library
syslog
vsyslog
buffer size
undefined behavior
unix

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.2%

An integer 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 very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.2%