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CVE-2015-1340

chmod race in doUidshiftIntoContainer

HIGH

7

CVSS Score

Published: April 22, 2019 at 03:35 PM UTC

Updated: June 17, 2026 at 12:22 AM UTC

2 products affected across 2 vendorsLxdLXD

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Severity

HIGH7

Exploit prediction

EPSS 0.9%

Description

LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Lxd · Linuxcontainers

95%

All versions

60%

v < 0.19-0ubuntu5

Affected range stops below 0.19-0ubuntu5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4

References (1)

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4

CVSS

7HIGHcanonical

Attack Vector: PHYSICAL
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-362

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