vulnwire
8.4high

CVE-2016-7543

Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.

Published 9 y ago · modified 4 mo ago · JSON

CVSS
8.4
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.6%
percentile 48%
Public exploits
0
none known

Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.

Exploit prediction (EPSS)

0.58% probability of exploitation in the next 30 days, higher than 48% 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-20 Improper Input Validation

References

  • rhn.redhat.com /errata/RHSA-2017-0725.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/OU3C756YPHDAAPFX76UGZBAQ · vendor-advisory, x_refsource_FEDORA, x_transferred
  • access.redhat.com /errata/RHSA-2017:1931 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/F7XOQSHU63Y357NHU5FPTFBM · vendor-advisory, x_refsource_FEDORA, x_transferred
  • openwall.com /lists/oss-security/2016/09/26/9 · mailing-list, x_refsource_MLIST, x_transferred
  • lists.gnu.org /archive/html/bug-bash/2016-09/msg00018.html · mailing-list, x_refsource_MLIST, x_transferred
  • securityfocus.com /bid/93183 · vdb-entry, x_refsource_BID, x_transferred
  • h20566.www2.hpe.com /portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05388115 · x_refsource_CONFIRM, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/Z2VRBSIPZDZ75ZQ2DLITHUID · vendor-advisory, x_refsource_FEDORA, x_transferred
  • securitytracker.com /id/1037812 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • security.gentoo.org /glsa/201701-02 · vendor-advisory, x_refsource_GENTOO, 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.