Information Exposure The advisory has been revoked - it doesn't affect any version of package gcc-9 Open this link in a new tab
Threat Intelligence
EPSS
0.05% (18th
percentile)
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Test your applications- Snyk ID SNYK-UBUNTU1910-GCC9-581433
- published 12 Jun 2020
- disclosed 8 Jun 2020
Introduced: 8 Jun 2020
CVE-2020-13844 Open this link in a new tabAmendment
The Ubuntu
security team deemed this advisory irrelevant for Ubuntu:19.10
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gcc-9
package and not the gcc-9
package as distributed by Ubuntu
.
Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-13844
- http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions
- https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.html