CVE-2023-6780
Published: 31 January 2024
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.
Priority
Status
Package | Release | Status |
---|---|---|
eglibc Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Does not exist
|
|
jammy |
Does not exist
|
|
mantic |
Does not exist
|
|
noble |
Does not exist
|
|
trusty |
Not vulnerable
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
glibc Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
focal |
Not vulnerable
(2.31-0ubuntu9.14)
|
|
jammy |
Not vulnerable
(2.35-0ubuntu3.6)
|
|
mantic |
Released
(2.38-1ubuntu6.1)
|
|
noble |
Released
(2.39-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.37-15)
|
|
xenial |
Not vulnerable
|
|
Patches: upstream: https://sourceware.org/git?p=glibc.git;a=commit;h=ddf542da94caf97ff43cc2875c88749880b7259b |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | Low |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |