vulnwire
7.1high

CVE-2017-7482

In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.1
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 41%
Public exploits
0
none known

In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

Exploit prediction (EPSS)

0.47% probability of exploitation in the next 30 days, higher than 41% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.07.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA3.07.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • [UNKNOWN] kernel:

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound
Technology feeds
Linux kernel (RSS, critical only)

References

  • securityfocus.com /bid/99299 · vdb-entry, x_refsource_BID, x_transferred
  • git.kernel.org /pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266f · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1038787 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • debian.org /security/2017/dsa-3927 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • debian.org /security/2017/dsa-3945 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2017-7482 · x_refsource_CONFIRM, x_transferred
  • seclists.org /oss-sec/2017/q2/602 · mailing-list, x_refsource_MLIST, x_transferred
  • access.redhat.com /errata/RHSA-2019:0641 · vendor-advisory, x_refsource_REDHAT, x_transferred

Sources

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