Ubuntu.comUB:CVE-2023-39198CVE-2023-39198
7.5 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
6.7 Medium
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
5.1%
A race condition was found in the QXL driver in the Linux kernel. The
qxl_mode_dumb_create() function dereferences the qobj returned by the
qxl_gem_object_create_with_handle(), but the handle is the only one holding
a reference to it. This flaw allows an attacker to guess the returned
handle value and trigger a use-after-free issue, potentially leading to a
denial of service or privilege escalation.
Bugs
- <https://bugzilla.redhat.com/show_bug.cgi?id=2218332>
- <https://bugzilla.suse.com/show_bug.cgi?id=1216965>
Notes
| Author | Note |
|---|---|
| rodrigo-zaiden | also known as ZDI-CAN-20940 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < 5.15.0-91.101 | UNKNOWN |
| ubuntu | 23.04 | noarch | linux | < 6.2.0-39.40 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1051.56 | UNKNOWN |
| ubuntu | 23.04 | noarch | linux-aws | < 6.2.0-1017.17 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws-5.15 | < 5.15.0-1051.56~20.04.1 | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws-6.2 | < 6.2.0-1017.17~22.04.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-azure | < 5.15.0-1053.61 | UNKNOWN |
References
access.redhat.com/security/cve/CVE-2023-39198
git.kernel.org/linus/c611589b4259ed63b9b77be6872b1ce07ec0ac16 (6.5-rc7)
launchpad.net/bugs/cve/CVE-2023-39198
nvd.nist.gov/vuln/detail/CVE-2023-39198
security-tracker.debian.org/tracker/CVE-2023-39198
ubuntu.com/security/notices/USN-6534-1
ubuntu.com/security/notices/USN-6534-2
ubuntu.com/security/notices/USN-6534-3
ubuntu.com/security/notices/USN-6549-1
ubuntu.com/security/notices/USN-6549-2
ubuntu.com/security/notices/USN-6549-3
ubuntu.com/security/notices/USN-6549-4
ubuntu.com/security/notices/USN-6549-5
www.cve.org/CVERecord?id=CVE-2023-39198
Related
7.5 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
6.7 Medium
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
5.1%