ALAS-2018-1126

Related Vulnerabilities: CVE-2018-1050   CVE-2018-10858   CVE-2018-1139  

A null pointer dereference flaw was found in Samba RPC external printer service. An attacker could use this flaw to cause the printer spooler service to crash. (CVE-2018-1050) A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client. (CVE-2018-10858) A flaw was found in the way samba allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client. (CVE-2018-1139)

ALAS-2018-1126


Amazon Linux AMI Security Advisory: ALAS-2018-1126
Advisory Release Date: 2019-01-22 17:55 Pacific
Advisory Updated Date: 2019-01-25 02:42 Pacific
Severity: Medium

Issue Overview:

A null pointer dereference flaw was found in Samba RPC external printer service. An attacker could use this flaw to cause the printer spooler service to crash. (CVE-2018-1050)

A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client. (CVE-2018-10858)

A flaw was found in the way samba allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client. (CVE-2018-1139)


Affected Packages:

samba


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

New Packages:
i686:
    samba-python-test-4.8.3-4.amzn1.i686
    libsmbclient-4.8.3-4.amzn1.i686
    samba-libs-4.8.3-4.amzn1.i686
    samba-devel-4.8.3-4.amzn1.i686
    samba-test-libs-4.8.3-4.amzn1.i686
    samba-winbind-krb5-locator-4.8.3-4.amzn1.i686
    samba-winbind-clients-4.8.3-4.amzn1.i686
    samba-common-tools-4.8.3-4.amzn1.i686
    ctdb-4.8.3-4.amzn1.i686
    samba-winbind-modules-4.8.3-4.amzn1.i686
    libsmbclient-devel-4.8.3-4.amzn1.i686
    samba-krb5-printing-4.8.3-4.amzn1.i686
    samba-debuginfo-4.8.3-4.amzn1.i686
    samba-4.8.3-4.amzn1.i686
    samba-python-4.8.3-4.amzn1.i686
    ctdb-tests-4.8.3-4.amzn1.i686
    samba-test-4.8.3-4.amzn1.i686
    libwbclient-devel-4.8.3-4.amzn1.i686
    samba-client-libs-4.8.3-4.amzn1.i686
    samba-winbind-4.8.3-4.amzn1.i686
    samba-common-libs-4.8.3-4.amzn1.i686
    libwbclient-4.8.3-4.amzn1.i686
    samba-client-4.8.3-4.amzn1.i686

noarch:
    samba-common-4.8.3-4.amzn1.noarch
    samba-pidl-4.8.3-4.amzn1.noarch

src:
    samba-4.8.3-4.amzn1.src

x86_64:
    samba-winbind-krb5-locator-4.8.3-4.amzn1.x86_64
    samba-test-libs-4.8.3-4.amzn1.x86_64
    samba-winbind-clients-4.8.3-4.amzn1.x86_64
    samba-winbind-4.8.3-4.amzn1.x86_64
    libsmbclient-4.8.3-4.amzn1.x86_64
    samba-python-test-4.8.3-4.amzn1.x86_64
    samba-python-4.8.3-4.amzn1.x86_64
    samba-devel-4.8.3-4.amzn1.x86_64
    libwbclient-devel-4.8.3-4.amzn1.x86_64
    samba-debuginfo-4.8.3-4.amzn1.x86_64
    samba-krb5-printing-4.8.3-4.amzn1.x86_64
    libwbclient-4.8.3-4.amzn1.x86_64
    samba-common-libs-4.8.3-4.amzn1.x86_64
    ctdb-tests-4.8.3-4.amzn1.x86_64
    samba-client-libs-4.8.3-4.amzn1.x86_64
    samba-client-4.8.3-4.amzn1.x86_64
    libsmbclient-devel-4.8.3-4.amzn1.x86_64
    ctdb-4.8.3-4.amzn1.x86_64
    samba-test-4.8.3-4.amzn1.x86_64
    samba-4.8.3-4.amzn1.x86_64
    samba-winbind-modules-4.8.3-4.amzn1.x86_64
    samba-libs-4.8.3-4.amzn1.x86_64
    samba-common-tools-4.8.3-4.amzn1.x86_64