VDB
CVE-2013-1956
CVE-2013-1956
REJECTED
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
EPSS 0.03% · 9.1th percentile
Risk Scores
EPSS Score
0.03%
9.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | linux-lts-wily | 0 |
| Ubuntu:14.04:LTS | linux | 0 |
| Ubuntu:14.04:LTS | linux-lts-utopic | 0 |
| Ubuntu:16.04:LTS | linux-hwe | 0 |
| Ubuntu:14.04:LTS | linux-lts-vivid | 0 |
| Ubuntu:14.04:LTS | linux-lts-xenial | 0 |
| Ubuntu:16.04:LTS | linux-snapdragon | 0 |
| Ubuntu:14.04:LTS | linux-aws | 0 |
| Ubuntu:16.04:LTS | linux-gke | 0 |
| Ubuntu:16.04:LTS | linux | 0 |
| Ubuntu:16.04:LTS | linux-aws | 0 |
| Ubuntu:16.04:LTS | linux-raspi2 | 0 |
Exploit Intelligence
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3151527ee007b73a0ebd296010f1c0454a919c7d (circl)
- https://github.com/torvalds/linux/commit/3151527ee007b73a0ebd296010f1c0454a919c7d (circl)
- [oss-security] 20130416 Re: Re: Summary of security bugs (now fixed) in user namespaces (circl)
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6 (circl)
Timeline
- Apr 24, 2013 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
- May 25, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2013-1956 third-party-advisory
- http://www.openwall.com/lists/oss-security/2013/04/16 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2013-1956 third-party-advisory