SUSE Security Update: Live patch for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2015:1487-1 Rating: important References: #939044 #939241 #939262 #939263 #939270 #939273 #939276 #939277 Cross-References: CVE-2014-8159 CVE-2015-1805 CVE-2015-3331 CVE-2015-3339 CVE-2015-3636 CVE-2015-4700 CVE-2015-5364 CVE-2015-5366 Affected Products: SUSE Linux Enterprise Live Patching 12 ______________________________________________________________________________ An update that fixes 8 vulnerabilities is now available. Description: This update contains a kernel live patch for the 3.12.38-44 SUSE Linux Enterprise Server 12 Kernel, fixing following security issues. - CVE-2015-3339: A race condition in the prepare_binprm function in fs/exec.c in the Linux kernel allowed local users to gain privileges by executing a setuid program at a time instant when a chown to root is in progress, and the ownership is changed but the setuid bit is not yet stripped. (bsc#939263 bsc#939044) - CVE-2015-3636: The ping_unhash function in net/ipv4/ping.c in the Linux kernel did not initialize a certain list data structure during an unhash operation, which allowed local users to gain privileges or cause a denial of service (use-after-free and system crash) by leveraging the ability to make a SOCK_DGRAM socket system call for the IPPROTO_ICMP or IPPROTO_ICMPV6 protocol, and then making a connect system call after a disconnect. (bsc#939277) - CVE-2015-5364/CVE-2015-5366: Two denial of service attacks via a flood of UDP packets with invalid checksums were fixed that could be used by remote attackers to delay execution. (bsc#939276) - CVE-2015-1805: The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel did not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allowed local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun." (bsc#939270) - CVE-2015-4700: A BPF Jit optimization flaw could allow local users to panic the kernel. (bsc#939273) - CVE-2015-3331: The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel did not properly determine the memory locations used for encrypted data, which allowed context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket. (bsc#939262) - CVE-2014-8159: The InfiniBand (IB) implementation in the Linux kernel did not properly restrict use of User Verbs for registration of memory regions, which allowed local users to access arbitrary physical memory locations, and consequently cause a denial of service (system crash) or gain privileges, by leveraging permissions on a uverbs device under /dev/infiniband/. (bsc#939241) Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Live Patching 12: zypper in -t patch SUSE-SLE-Live-Patching-12-2015-486=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Live Patching 12 (x86_64): kgraft-patch-3_12_38-44-default-2-7.1 kgraft-patch-3_12_38-44-xen-2-7.1 References: https://www.suse.com/security/cve/CVE-2014-8159.html https://www.suse.com/security/cve/CVE-2015-1805.html https://www.suse.com/security/cve/CVE-2015-3331.html https://www.suse.com/security/cve/CVE-2015-3339.html https://www.suse.com/security/cve/CVE-2015-3636.html https://www.suse.com/security/cve/CVE-2015-4700.html https://www.suse.com/security/cve/CVE-2015-5364.html https://www.suse.com/security/cve/CVE-2015-5366.html https://bugzilla.suse.com/939044 https://bugzilla.suse.com/939241 https://bugzilla.suse.com/939262 https://bugzilla.suse.com/939263 https://bugzilla.suse.com/939270 https://bugzilla.suse.com/939273 https://bugzilla.suse.com/939276 https://bugzilla.suse.com/939277 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org