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ubuntucveUbuntu.comUB:CVE-2023-26112
HistoryApr 03, 2023 - 12:00 a.m.

CVE-2023-26112

2023-04-0300:00:00
ubuntu.com
ubuntu.com
13
redos vulnerability
configobj
validate function
server side configuration
bugs
unix

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

50.0%

All versions of the package configobj are vulnerable to Regular Expression
Denial of Service (ReDoS) via the validate function, using (.+?)((.*)).
Note: This is only exploitable in the case of a developer, putting the
offending value in a server side configuration file.

Bugs

Notes

Author Note
mdeslaur per advisory: “This is only exploitable in the case of a developer, putting the offending value in a server side configuration file”
iconstantin as of 2024-07-02, the proposed fix has not yet been committed

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

50.0%