VDB
CVE-2020-13844
CVE-2020-13844
PUBLISHED
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."
EPSS 0.14% · 33.4th percentile
Risk Scores
EPSS Score
0.14%
33.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | gcc-9-cross-ports | 18ubuntu4, *, 11ubuntu1 |
| Ubuntu:16.04:LTS | gcc-4.9 | 4.9.3-5ubuntu1, 4.9.3-13ubuntu2, 4.9.3-6ubuntu2 |
| Ubuntu:16.04:LTS | gcc-opt | 1.20, 0 |
| Ubuntu:16.04:LTS | gcc-4.7-armel-cross | 1.86, 0, 1.90 |
| Ubuntu:20.04:LTS | gcc-9-cross | *, 21ubuntu6, 21ubuntu5 |
| Ubuntu:14.04:LTS | gccgo-4.9 | 4.9-20140303-0ubuntu3, 4.9-20140303-0ubuntu2, 4.9-20140222-0ubuntu1 |
| Ubuntu:20.04:LTS | gcc-9 | 9.3.0-10ubuntu2, 9.2.1-19ubuntu1, 9.2.1-20ubuntu3 |
| Ubuntu:22.04:LTS | gcc-opt | 0, 1.20build1 |
| Ubuntu:25.10 | gcc-h8300-hms | 1:3.4.6+dfsg2-4.2, 0 |
| Ubuntu:16.04:LTS | gcc-4.8-arm64-cross | 0.18, 2, 0.17 |
| Ubuntu:22.04:LTS | gcc-h8300-hms | 0, *, 1:3.4.6+dfsg2-4.1 |
| Ubuntu:18.04:LTS | llvm-toolchain-4.0 | 1:4.0.1-10, 0, 1:4.0.1-6 |
| Ubuntu:20.04:LTS | gcc-m68hc1x | 1:3.3.6+3.1+dfsg-3.1ubuntu1, 0 |
| Ubuntu:25.10 | gcc-avr | *, 0 |
| Ubuntu:20.04:LTS | gcc-snapshot | 1:20191008-1ubuntu1, 1:20200124-1ubuntu1, 1:20191201-0ubuntu1 |
| Ubuntu:16.04:LTS | gcc-3.3 | 0, 1:3.3.6ds1-27.2ubuntu1, 1:3.3.6ds1-28ubuntu1 |
| Ubuntu:25.10 | gcc-snapshot | 1:20250921-1ubuntu1, 0, 1:20250322-1ubuntu1 |
| Ubuntu:16.04:LTS | gcc-4.8-ppc64el-cross | 2, 0, 0.9 |
| Ubuntu:24.04:LTS | gcc-mingw-w64 | 26.1, 0, 25.3 |
| Ubuntu:20.04:LTS | gcc-arm-none-eabi | 15:9-2019-q4-0ubuntu1, 15:7-2018-q2-6, 15:8-2019-q3-1 |
…and 79 more
Exploit Intelligence
Timeline
- Jun 8, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-13844 third-party-advisory
- http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html third-party-advisory
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability third-party-advisory
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation third-party-advisory
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions third-party-advisory
- https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=679db70801da9fda91d26caf13bf5b5ccc74e8e8 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-13844 third-party-advisory
- Multiples vulnérabilités dans les produits IBM advisory