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Debian Security Advisory DSA 2992-1 (linux - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation: CVE-2014-3534 Martin Schwidefsky of IBM discovered that the ptrace subsystem does not properly sanitize the psw mask value. On s390 systems, an unprivileged local user could use this flaw to set address space control bits to kernel space combination and thus gain read/write access to kernel memory. CVE-2014-4667 Gopal Reddy Kodudula of Nokia Siemens Networks discovered that the sctp_association_free function does not properly manage a certain backlog value, which allows remote attackers to cause a denial of service (socket outage) via a crafted SCTP packet. CVE-2014-4943 Sasha Levin discovered a flaw in the Linux kernel's point-to-point protocol (PPP) when used with the Layer Two Tunneling Protocol (L2TP). An unprivileged local user could use this flaw for privilege escalation.
Affected Software
Affected Software
linux on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the stable distribution (wheezy), these problems have been fixed in version 3.2.60-1+deb7u3. For the unstable distribution (sid), these problems have been fixed in version 3.14.13-2. We recommend that you upgrade your linux packages.