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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
7

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

49.7%

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).

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

49.7%

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