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ubuntucveUbuntu.comUB:CVE-2018-20845
HistoryJun 26, 2019 - 12:00 a.m.

CVE-2018-20845

2019-06-2600:00:00
ubuntu.com
ubuntu.com
10

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.004 Low

EPSS

Percentile

74.3%

Division-by-zero vulnerabilities in the functions pi_next_pcrl,
pi_next_cprl, and pi_next_rpcl in openmj2/pi.c in OpenJPEG through 2.3.0
allow remote attackers to cause a denial of service (application crash).

Notes

Author Note
ebarretto Marking emscripten ignored as openjpeg2 code is only for test/example.
mdeslaur Ubuntu openjpeg2 packages are built with BUILD_MJ2:BOOL=OFF, so the vulnerable code is not compiled
ccdm94 the openjpeg package does not include the file patched by commit c5bd64ea146. Before the refactoring, there was a single pi.c file, which according to the code itself, seems to be affected by this vulnerability, however, it looks like the vulnerability in this case is related to CVE-2018-14423 instead, which has a very similar patch (bd88611ed9a).

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.004 Low

EPSS

Percentile

74.3%