samba-4.6.2-11.el7
エラータID: AXSA:2017-2305:06
リリース日:
2017/10/09 Monday - 21:23
題名:
samba-4.6.2-11.el7
影響のあるチャネル:
Asianux Server 7 for x86_64
Severity:
Moderate
Description:
以下項目について対処しました。
[Security Fix]
- samba には,ある設定オプションが有効な場合,「SMB 署名」を強制しない
問題があり,リモートの攻撃者が中間者攻撃を行い,平文で情報を取得する
脆弱性があります。(CVE-2017-12150)
- samba の samba クライアントが最大のプロトコルセットが
SMB3 として暗号化を行う問題があり,そのコネクションでは DFS
リダイレクトの署名と暗号化の要求を失ってしまい,中間者攻撃に
よって,攻撃者がコネクションの内容を読み込んだり変更する
可能性のある脆弱性があります。(CVE-2017-12151)
- SMB1 プロトコルには情報漏洩の問題があり,不正なクライアントが
攻撃者によってサーバのメモリの厳密な領域をコントロールできないものの,
samba 共有上のファイルあるいは共有プリンタへサーバのメモリの
内容を書き出す可能性のある脆弱性があります。(CVE-2017-12163)
一部CVEの翻訳文はJVNからの引用になります。
http://jvndb.jvn.jp/
解決策:
パッケージをアップデートしてください。
CVE:
CVE-2017-12150
It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.
It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.
CVE-2017-12151
A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.
A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.
CVE-2017-12163
An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.
An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.
追加情報:
N/A
ダウンロード:
SRPMS
- samba-4.6.2-11.el7.src.rpm
MD5: c7498cdb95582017ca5eecb3833be632
SHA-256: 1dfbc8c8ebf447abd44abbb241c157a738d89c161d9605224394c5e9c0d0ffca
Size: 14.25 MB
Asianux Server 7 for x86_64
- ctdb-4.6.2-11.el7.x86_64.rpm
MD5: 0eb8b9b60333f193bc1d562a20ee10cd
SHA-256: b04fbe77b22ebfabf3d2031e99e4f5475cc90a326c51e9b4939779f762d2ce69
Size: 691.81 kB - ctdb-tests-4.6.2-11.el7.x86_64.rpm
MD5: 998fca5d22e0846ebeac0e8c21a40b3b
SHA-256: c56d515fe2a047684a3de5aca12b8e363e6bf15265b42dcd01ef29b91984d726
Size: 827.73 kB - libsmbclient-4.6.2-11.el7.x86_64.rpm
MD5: d9cef4e85171d5328b33acc6ff0290aa
SHA-256: c57e2d62851398f9ec09bc002fcb9a0faa1a9cfecef3d5de676e62136b86bc39
Size: 128.57 kB - libwbclient-4.6.2-11.el7.x86_64.rpm
MD5: e741855de5fa85c8854b070d9a2998b3
SHA-256: f49161e2b5009854c95580a31c163552942a23cb4f2fd1c39d7574ed9d15c2d2
Size: 103.45 kB - samba-4.6.2-11.el7.x86_64.rpm
MD5: a260b5514accec52218c84868ed46f71
SHA-256: d272e0112046319f904a9e6159d07fca4724f4b01d6f21936efa59928b2cc6ec
Size: 632.38 kB - samba-client-4.6.2-11.el7.x86_64.rpm
MD5: e96c006fa15ac03845008336f7c35514
SHA-256: ece44c08a39010eaffc8e0511c6ee1005a5803cf8c24b5eee2158d5fc40e9e47
Size: 596.78 kB - samba-client-libs-4.6.2-11.el7.x86_64.rpm
MD5: 504d632552374cc56c12f04bdd603176
SHA-256: 0ca86ae55d197a808916ba87142ca7f97f815ab375ca552bdc9187ac87374496
Size: 4.72 MB - samba-common-4.6.2-11.el7.noarch.rpm
MD5: 6ec78ad6ab1ff825ac3404577c5c3102
SHA-256: 0c8484b68236b7b38bc33924465afad7faf96d657e64ee9d3404e5b95319e923
Size: 196.46 kB - samba-common-libs-4.6.2-11.el7.x86_64.rpm
MD5: 84e7fa3a7e1b02b454684bf24b50fd38
SHA-256: c401c476fd8bf80503691f46944e87eadf032f174a46c9e8a496aa6d07972e62
Size: 163.20 kB - samba-common-tools-4.6.2-11.el7.x86_64.rpm
MD5: 2e91aa250346207927653e106b325e17
SHA-256: 58fd8d81e6da19655b13a31a3c1a86250b3245213bc232dbd8bb6d30041f4b8f
Size: 455.40 kB - samba-krb5-printing-4.6.2-11.el7.x86_64.rpm
MD5: b7793c1580ef79ae0543e4c82571d8d0
SHA-256: d98b1d61c10d44be549604c0e76d229fea8e43aea04655a7747052bc7aff1976
Size: 86.00 kB - samba-libs-4.6.2-11.el7.x86_64.rpm
MD5: 41bc8fba59375b4bd7577c156d3ebfb6
SHA-256: 6198b339ec121513e68801892159f9ff60cf17c37c5a3adb7665a93435b953fb
Size: 263.60 kB - samba-python-4.6.2-11.el7.x86_64.rpm
MD5: 7e9a9594768eb96b99ebd2f1a1331960
SHA-256: cd7cc6799a733be004fa0ebbbecc56dd3a6e2dcff15b2df3a6a23fdbedbf411a
Size: 2.84 MB - samba-winbind-4.6.2-11.el7.x86_64.rpm
MD5: 53807029745fc2defff4326e57326a2b
SHA-256: 89d2ac5f4bf397474ad1913aabe21dc19cef6a0a41976614c6c3f8e90fccaf54
Size: 515.23 kB - samba-winbind-clients-4.6.2-11.el7.x86_64.rpm
MD5: d5d59194b0f48001e92a2cb871ac7b8f
SHA-256: 81b53010959a148e73610b3df2644e5b5240f6824efe0f9c5a1139cda65fddb8
Size: 127.76 kB - samba-winbind-modules-4.6.2-11.el7.x86_64.rpm
MD5: 73d228a4de4b945d945b931811a147ae
SHA-256: 8baa09322820b9cfdbd98a765987ebdb5aae2ff82c7e9f81f153bc715cf4a0dd
Size: 110.38 kB - libsmbclient-4.6.2-11.el7.i686.rpm
MD5: fdaac4f1bd8c19a654a3d62cf7e4ce5f
SHA-256: 78934720e29f64bb8731a8c2fc4aaa496f3a983049cd767a3acd453f076cd6b1
Size: 128.81 kB - libwbclient-4.6.2-11.el7.i686.rpm
MD5: 94abd35e803d507e0e0b91ba977b2628
SHA-256: 11ff69cff4be52964a832f02c23a725ffdca70220a7e2ea236c8c501b2d0b886
Size: 104.17 kB - samba-client-libs-4.6.2-11.el7.i686.rpm
MD5: c9631f813844cf61c6d6f76b92eff2d5
SHA-256: 8de559e066609c842a4d3a97b228d915a512b319bac88282e96c0832d7709069
Size: 4.72 MB - samba-libs-4.6.2-11.el7.i686.rpm
MD5: 576e0e34c10cb0b47881ec7445d14e8e
SHA-256: d2ec9db7c55327994bf6f36d17e4dc9f760fe8f5346c20ff9ea66ca70c58ead8
Size: 266.48 kB - samba-winbind-modules-4.6.2-11.el7.i686.rpm
MD5: ee9df3de4c536aee2ace2f1c95bdb837
SHA-256: c5a13852f7a5a0ab212ad910273379b20d06ad21379ae0d098ee163765661133
Size: 110.40 kB