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amazonAmazonALAS-2016-674
HistoryMar 29, 2016 - 3:30 p.m.

Medium: samba

2016-03-2915:30:00
alas.aws.amazon.com
18

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

67.7%

Issue Overview:

A flaw was found in the way Samba handled ACLs on symbolic links. An authenticated user could use this flaw to gain access to an arbitrary file or directory by overwriting its ACL.

Affected Packages:

samba

Issue Correction:
Run yum update samba to update your system.

New Packages:

i686:  
    samba-test-4.2.3-12.31.amzn1.i686  
    samba-test-libs-4.2.3-12.31.amzn1.i686  
    samba-test-devel-4.2.3-12.31.amzn1.i686  
    samba-common-libs-4.2.3-12.31.amzn1.i686  
    samba-winbind-4.2.3-12.31.amzn1.i686  
    samba-libs-4.2.3-12.31.amzn1.i686  
    samba-devel-4.2.3-12.31.amzn1.i686  
    ctdb-devel-4.2.3-12.31.amzn1.i686  
    ctdb-tests-4.2.3-12.31.amzn1.i686  
    libsmbclient-4.2.3-12.31.amzn1.i686  
    samba-winbind-clients-4.2.3-12.31.amzn1.i686  
    samba-winbind-modules-4.2.3-12.31.amzn1.i686  
    samba-python-4.2.3-12.31.amzn1.i686  
    samba-client-libs-4.2.3-12.31.amzn1.i686  
    samba-4.2.3-12.31.amzn1.i686  
    samba-debuginfo-4.2.3-12.31.amzn1.i686  
    libwbclient-4.2.3-12.31.amzn1.i686  
    samba-client-4.2.3-12.31.amzn1.i686  
    samba-winbind-krb5-locator-4.2.3-12.31.amzn1.i686  
    samba-common-tools-4.2.3-12.31.amzn1.i686  
    libwbclient-devel-4.2.3-12.31.amzn1.i686  
    ctdb-4.2.3-12.31.amzn1.i686  
    libsmbclient-devel-4.2.3-12.31.amzn1.i686  
  
noarch:  
    samba-pidl-4.2.3-12.31.amzn1.noarch  
    samba-common-4.2.3-12.31.amzn1.noarch  
  
src:  
    samba-4.2.3-12.31.amzn1.src  
  
x86_64:  
    samba-libs-4.2.3-12.31.amzn1.x86_64  
    samba-winbind-modules-4.2.3-12.31.amzn1.x86_64  
    samba-winbind-4.2.3-12.31.amzn1.x86_64  
    samba-winbind-krb5-locator-4.2.3-12.31.amzn1.x86_64  
    libwbclient-4.2.3-12.31.amzn1.x86_64  
    samba-devel-4.2.3-12.31.amzn1.x86_64  
    libwbclient-devel-4.2.3-12.31.amzn1.x86_64  
    ctdb-4.2.3-12.31.amzn1.x86_64  
    libsmbclient-devel-4.2.3-12.31.amzn1.x86_64  
    samba-winbind-clients-4.2.3-12.31.amzn1.x86_64  
    samba-python-4.2.3-12.31.amzn1.x86_64  
    ctdb-tests-4.2.3-12.31.amzn1.x86_64  
    libsmbclient-4.2.3-12.31.amzn1.x86_64  
    samba-test-4.2.3-12.31.amzn1.x86_64  
    samba-common-libs-4.2.3-12.31.amzn1.x86_64  
    samba-test-devel-4.2.3-12.31.amzn1.x86_64  
    ctdb-devel-4.2.3-12.31.amzn1.x86_64  
    samba-4.2.3-12.31.amzn1.x86_64  
    samba-client-libs-4.2.3-12.31.amzn1.x86_64  
    samba-common-tools-4.2.3-12.31.amzn1.x86_64  
    samba-client-4.2.3-12.31.amzn1.x86_64  
    samba-test-libs-4.2.3-12.31.amzn1.x86_64  
    samba-debuginfo-4.2.3-12.31.amzn1.x86_64  

Additional References

Red Hat: CVE-2015-7560

Mitre: CVE-2015-7560

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

67.7%