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debianDebianDEBIAN:DSA-3538-1:FB75A
HistoryMar 31, 2016 - 10:55 a.m.

[SECURITY] [DSA 3538-1] libebml security update

2016-03-3110:55:43
lists.debian.org
13

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

9.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

Low

0.008 Low

EPSS

Percentile

82.1%


Debian Security Advisory DSA-3538-1 [email protected]
https://www.debian.org/security/ Sebastien Delafond
March 31, 2016 https://www.debian.org/security/faq


Package : libebml
CVE ID : CVE-2015-8789 CVE-2015-8790 CVE-2015-8791

Several vulnerabilities were discovered in libebml, a library for
manipulating Extensible Binary Meta Language files.

CVE-2015-8789

Context-dependent attackers could trigger a use-after-free
vulnerability by providing a maliciously crafted EBML document.

CVE-2015-8790

Context-dependent attackers could obtain sensitive information
from the process' heap memory by using a maliciously crafted UTF-8
string.

CVE-2015-8791

Context-dependent attackers could obtain sensitive information
from the process' heap memory by using a maliciously crafted
length value in an EBML id.

For the oldstable distribution (wheezy), these problems have been fixed
in version 1.2.2-2+deb7u1.

For the stable distribution (jessie), these problems have been fixed in
version 1.3.0-2+deb8u1.

For the testing (stretch) and unstable (sid) distributions, these
problems have been fixed in version 1.3.3-1.

We recommend that you upgrade your libebml packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

9.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

Low

0.008 Low

EPSS

Percentile

82.1%