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 |