CVE-2022-39046
Published: 31 August 2022
An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.
Notes
Author | Note |
---|---|
mdeslaur |
this was introduced in 2.36 |
Priority
Status
Package | Release | Status |
---|---|---|
eglibc
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
trusty |
Not vulnerable
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
glibc
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(2.27-3ubuntu1.6)
|
focal |
Not vulnerable
(2.31-0ubuntu9.9)
|
|
jammy |
Not vulnerable
(2.35-0ubuntu3.1)
|
|
kinetic |
Not vulnerable
(2.36-0ubuntu3)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.37)
|
|
xenial |
Not vulnerable
|
|
Patches:
upstream: https://sourceware.org/git/?p=glibc.git;a=commit;h=b0e7888d1fa2dbd2d9e1645ec8c796abf78880b9 upstream: https://sourceware.org/git/?p=glibc.git;a=commit;h=645d94808aaa90fb1b20a25ff70bb50d9eb1d55b |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |