vulnwire
5.5med

CVE-2016-9178

The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variab…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 38%
Public exploits
0
none known

The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variable, which allows local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call.

Exploit prediction (EPSS)

0.43% probability of exploitation in the next 30 days, higher than 38% of all scored CVEs.

CVSS scores

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

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds
Linux kernel (RSS, critical only)

References

  • github.com /torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af · x_refsource_CONFIRM, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee3 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/11/04/4 · mailing-list, x_refsource_MLIST, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1391908 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/94144 · vdb-entry, x_refsource_BID, x_transferred
  • kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.7.5 · x_refsource_CONFIRM, x_transferred

Sources

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