CVE-2015-1340
chmod race in doUidshiftIntoContainer
CVE-2015-1340 is a high vulnerability (CVSS 7.0) in Canonical Lxd, published April 22, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.90%, the 59th percentile. Fixed in github.com/lxc/lxd 0.0.0-20151004155856-19c6961cc101.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
chmod race in doUidshiftIntoContainer
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.
- Record
CVE-2015-1340- CVSS 3.0
- 7.0 High
CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
EUVDEUVD-2022-3203
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.
- Record
EUVD-2022-3203- CVSS 3.0
- 7.0 High
CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8mpq-fmr3-6jxv
LXD vulnerable to Race Condition
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.
Specific Go Packages Affected
github.com/lxc/lxd/shared
- Record
GHSA-8mpq-fmr3-6jxv- CVSS 3.0
- 8.1 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2015-1340- CVSS 3.0
- 7.0 High
CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - CVSS 3.0
- 8.1 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVGHSA-8mpq-fmr3-6jxv
LXD vulnerable to Race Condition
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.
Specific Go Packages Affected
github.com/lxc/lxd/shared
- Record
GHSA-8mpq-fmr3-6jxv- CVSS 3.0
- 8.1 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVGO-2021-0071 No score
Race condition in github.com/lxc/lxd
A race between chown and chmod operations during a container filesystem shift may allow a user who can modify the filesystem to chmod an arbitrary path of their choice, rather than the expected path.
- Record
GO-2021-0071- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/lxc/lxdGo |
before 0.0.0-20151004155856-19c6961cc101 | 0.0.0-20151004155856-19c6961cc101 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases, products, published | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |