CVE-2015-3027
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way...
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.
Exploit likelihood
What each source reports
NVD Score used
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.
- Record
CVE-2015-3027- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.
- Record
CVE-2015-3027- Updated
- 2026-11-02
EUVDEUVD-2015-3108 No score
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.
- Record
EUVD-2015-3108- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8ghm-9gv2-jj69 No score
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way...
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.
- Record
GHSA-8ghm-9gv2-jj69- Updated
- 2026-11-02
OSVUBUNTU-CVE-2015-3027 No score
Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.
- Record
UBUNTU-CVE-2015-3027- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
llvm-toolchain-3.6Ubuntu:14.04:LTS |
All versions, plus listed versions 1:3.6-2ubuntu1~trusty11:3.6-2ubuntu1~trusty2 |
None known |
llvm-toolchain-3.6Ubuntu:16.04:LTS |
All versions, plus listed versions 1:3.6.2-11:3.6.2-31:3.6.2-3build11:3.6.2-3ubuntu11:3.6.2-3ubuntu2 |
None known |
llvm-toolchain-3.5Ubuntu:16.04:LTS |
All versions, plus listed versions 1:3.5.2-21:3.5.2-31:3.5.2-3build11:3.5.2-3build21:3.5.2-3ubuntu1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-3027 is a medium vulnerability (CVSS 5.0) in Apple Xcode, published April 10, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.30%, the 70th percentile. No source names a fixed version.