8.4high

CVE-2017-16927

The scp_v0s_accept function in sesman/libscp/libscp_v0.c in the session manager in xrdp through 0.9.4 uses an untrusted integer as a write…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
8.4
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 36%
Public exploits
0
none known

Summary

The scp_v0s_accept function in sesman/libscp/libscp_v0.c in the session manager in xrdp through 0.9.4 uses an untrusted integer as a write length, which allows local users to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted input stream.

Exploit prediction (EPSS)

0.41% probability of exploitation in the next 30 days, higher than 36% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.4CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • groups.google.com /forum/#%21topic/xrdp-devel/PmVfMuy_xBA · x_refsource_CONFIRM, x_transferred
  • github.com /neutrinolabs/xrdp/pull/958 · x_refsource_CONFIRM, x_transferred
  • lists.debian.org /debian-lts-announce/2017/12/msg00005.html · mailing-list, x_refsource_MLIST, 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.