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CVE-2015-8709
kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by…
High7.0EPSS 0.40%
- Published
- Updated
- Reserved
- Assigned by
- debian
Description
kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.40% · top 66% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Weakness
Affected products
n/a
- affected n/a
References (25)
- SUSE-SU-2016:1038 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1033 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1034 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [linux-kernel] 20151226 [PATCH] ptrace: being capable wrt a process requires mapped uids/gids (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SU-2016:1035 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [linux-kernel] 20160106 Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SU-2016:1764 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1031 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1019 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20151231 Re: CVE Request: Linux kernel: privilege escalation in user namespaces (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20151217 CVE Request: Linux kernel: privilege escalation in user namespaces (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SU-2016:1037 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1045 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [linux-kernel] 20160106 Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2016-5d43766e33 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- SUSE-SU-2016:1032 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1039 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1041 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1046 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 79899 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1034899 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- openSUSE-SU-2016:1008 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1295287 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3434 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SUSE-SU-2016:1040 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2015-8709)Record last updated .