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redhatcveRedhat.comRH:CVE-2023-6779
HistoryJan 31, 2024 - 2:07 p.m.

CVE-2023-6779

2024-01-3114:07:35
redhat.com
access.redhat.com
24
cve-2023-6779
off-by-one
heap-based
glibc 2.37

8.4 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

Low

0.008 Low

EPSS

Percentile

81.3%

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.

8.4 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

Low

0.008 Low

EPSS

Percentile

81.3%