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mageiaGentoo FoundationMGASA-2020-0476
HistoryDec 29, 2020 - 2:57 p.m.

Updated jackit packages fix security vulnerability

2020-12-2914:57:17
Gentoo Foundation
advisories.mageia.org
16
jack2
package
security vulnerability
file descriptor close
exploitation
multithreaded
timing
information disclosure
crashes
file corruption
cve-2019-13351
unix

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

71.1%

posix/JackSocket.cpp in libjack in JACK2 1.9.1 through 1.9.12 has a “double file descriptor close” issue during a failed connection attempt when jackd2 is not running. Exploitation success depends on multithreaded timing of that double close, which can result in unintended information disclosure, crashes, or file corruption due to having the wrong file associated with the file descriptor (CVE-2019-13351).

OSVersionArchitecturePackageVersionFilename
Mageia7noarchjackit< 1.9.12-2.1jackit-1.9.12-2.1.mga7

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

71.1%