File _patchinfo of Package patchinfo.9012

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File _patchinfo of Package patchinfo.9012

<patchinfo incident="9012">
  <issue id="1107832" tracker="bnc">VUL-0: CVE-2018-14633: kernel live patch: security flaw in iscsi target code</issue>
  <issue id="1108963" tracker="bnc">VUL-0: CVE-2018-14634: kernel live patch: Integer overflow in Linux's create_elf_tables()</issue>
  <issue id="1110233" tracker="bnc">VUL-0:  CVE-2018-17182: kernel live patch: fix vmacache counter flushing</issue>
  <issue id="2018-14633" tracker="cve" />
  <issue id="2018-14634" tracker="cve" />
  <issue id="2018-17182" tracker="cve" />
  <category>security</category>
  <rating>important</rating>
  <packager>mbenes</packager>
  <description>This update for the Linux Kernel 3.12.74-60_64_93 fixes several issues.

The following security issues were fixed:

- CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bsc#1110233).
- CVE-2018-14634: An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable (bsc#1108963).
- CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bsc#1107832).
</description>
<summary>Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP1)</summary>
</patchinfo>

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