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Debian: DSA-4043-1 Moderate: Samba Use-After-Free and Information Leak

debian
Calendar Grey November 21, 2017
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Debian Security Announcement DSA-4050-1 tackles severe flaws in Samba, highlighting significant risks to the integrity of server operations.
Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix
Topics%20covered

Topics Covered

security advisory critical debian samba memory leak use-after-free heap information leak

Summary

CVE-2017-14746

Yihan Lian and Zhibin Hu of Qihoo 360 GearTeam discovered a
use-after-free vulnerability allowing a client to compromise a SMB
server via malicious SMB1 requests.

CVE-2017-15275

Volker Lendecke of SerNet and the Samba team discovered that Samba
is prone to a heap memory information leak, where server allocated
heap memory may be returned to the client without being cleared.

For the oldstable distribution (jessie), these problems have been fixed
in version 2:4.2.14+dfsg-0+deb8u9.

For the stable distribution (stretch), these problems have been fixed in
version 2:4.5.12+dfsg-2+deb9u1.

We recommend that you upgrade your samba packages.

For the detailed security status of samba please refer to its security
tracker page at: https://security-tracker.debian.org/tracker/source-package/samba

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/



Package: samba
CVE ID: CVE-2017-14746 CVE-2017-15275

Topics%20covered

Topics Covered

security advisory critical debian samba memory leak use-after-free heap information leak

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