vulnwire
5.5med

CVE-2018-7757

Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local us…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 45%
Public exploits
0
none known

Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.

Exploit prediction (EPSS)

0.53% probability of exploitation in the next 30 days, higher than 45% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.02.1AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-772 Missing Release of Resource after Effective Lifetime
Technology feeds
Linux kernel (RSS, critical only)

References

  • access.redhat.com /errata/RHSA-2018:3083 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • debian.org /security/2018/dsa-4187 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • usn.ubuntu.com /3654-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • github.com /torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4 · x_refsource_MISC, x_transferred
  • usn.ubuntu.com /3697-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • debian.org /security/2018/dsa-4188 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • access.redhat.com /errata/RHSA-2018:2948 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • usn.ubuntu.com /3697-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • securityfocus.com /bid/103348 · vdb-entry, x_refsource_BID, x_transferred
  • usn.ubuntu.com /3654-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3698-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.debian.org /debian-lts-announce/2018/05/msg00000.html · mailing-list, x_refsource_MLIST, x_transferred
  • usn.ubuntu.com /3656-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • access.redhat.com /errata/RHSA-2018:3096 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d4 · x_refsource_MISC, x_transferred
  • usn.ubuntu.com /3698-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred

Sources

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