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mageiaGentoo FoundationMGASA-2016-0351
HistoryOct 21, 2016 - 5:48 p.m.

Updated c-ares packages fix security vulnerability

2016-10-2117:48:32
Gentoo Foundation
advisories.mageia.org
10

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.045 Low

EPSS

Percentile

92.5%

In c-ares before 1.12.0, When a string is passed in to โ€˜ares_create_queryโ€™ or โ€˜ares_mkqueryโ€™ and uses an escaped trailing dot, like โ€œhello\.โ€, c-ares calculates the string length wrong and subsequently writes outside of the the allocated buffer with one byte. The wrongly written byte is the least significant byte of the โ€˜dnsclassโ€™ argument; most commonly 1 (CVE-2016-5180).

OSVersionArchitecturePackageVersionFilename
Mageia5noarchc-ares<ย 1.10.0-5.1c-ares-1.10.0-5.1.mga5

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.045 Low

EPSS

Percentile

92.5%