Ubuntu.comUB:CVE-2023-4641CVE-2023-4641
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.3 Medium
AI Score
Confidence
High
1.7 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:S/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
9.6%
A flaw was found in shadow-utils. When asking for a new password,
shadow-utils asks the password twice. If the password fails on the second
attempt, shadow-utils fails in cleaning the buffer used to store the first
entry. This may allow an attacker with enough access to retrieve the
password from the memory.
Bugs
- <https://bugzilla.redhat.com/show_bug.cgi?id=2215945>
- <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051062>
Notes
| Author | Note |
|---|---|
| Priority reason: Unlikely attack scenario | |
| alexmurray | Technically this doesn’t seem able to be exploitable in practice |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | shadow | < 1:4.5-1ubuntu2.5+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 20.04 | noarch | shadow | < 1:4.8.1-1ubuntu5.20.04.5 | UNKNOWN |
| ubuntu | 22.04 | noarch | shadow | < 1:4.8.1-2ubuntu2.2 | UNKNOWN |
| ubuntu | 23.10 | noarch | shadow | < 1:4.13+dfsg1-1ubuntu1.1 | UNKNOWN |
| ubuntu | 14.04 | noarch | shadow | < 1:4.1.5.1-1ubuntu9.5+esm4) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | shadow | < 1:4.2-3.1ubuntu5.5+esm4) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.3 Medium
AI Score
Confidence
High
1.7 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:S/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
9.6%