vulnwire
3.3low

CVE-2017-1086

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p4, 11.0-RELEASE-p15, 10.4-STABLE, 10.4-RELEASE-p3, and 10.3-RELEASE-p24, not all information i…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
3.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 30%
Public exploits
0
none known

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p4, 11.0-RELEASE-p15, 10.4-STABLE, 10.4-RELEASE-p3, and 10.3-RELEASE-p24, not all information in the struct ptrace_lwpinfo is relevant for the state of any thread, and the kernel does not fill the irrelevant bytes or short strings. Since the structure filled by the kernel is allocated on the kernel stack and copied to userspace, a leak of information of the kernel stack of the thread is possible from the debugger. As a result, some bytes from the kernel stack of the thread using ptrace (PT_LWPINFO) call can be observed in userspace.

Exploit prediction (EPSS)

0.36% probability of exploitation in the next 30 days, higher than 30% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.03.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD2.02.1AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • FreeBSD FreeBSD

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • securitytracker.com /id/1039809 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/101861 · vdb-entry, x_refsource_BID, x_transferred
  • freebsd.org /security/advisories/FreeBSD-SA-17:08.ptrace.asc · vendor-advisory, x_refsource_FREEBSD, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.