Vulnerability · Published Jun 8, 2020 · Assigned by mitre
CVE-2020-13844
Medium 5.5
In plain English
A medium-severity security flaw in the gcc-3.3 package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.5%top 56.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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."
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | gcc-3.3 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-3.3 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-9-cross-ports | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-9-cross-ports | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-arm-none-eabi | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-arm-none-eabi | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:25.10 | gcc-arm-none-eabi | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.04:LTS | gcc-arm-none-eabi | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.10 | gcc-arm-none-eabi | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-avr | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-avr | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:25.10 | gcc-avr | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.04:LTS | gcc-avr | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.10 | gcc-avr | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-h8300-hms | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-h8300-hms | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:25.10 | gcc-h8300-hms | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.04:LTS | gcc-h8300-hms | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.10 | gcc-h8300-hms | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-m68hc1x | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-mingw-w64 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-mingw-w64 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:25.10 | gcc-mingw-w64 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.04:LTS | gcc-mingw-w64 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.10 | gcc-mingw-w64 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-msp430 | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-opt | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-opt | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:25.10 | gcc-opt | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.04:LTS | gcc-opt | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.10 | gcc-opt | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:22.04:LTS | gcc-snapshot | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:24.04:LTS | gcc-snapshot | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:25.10 | gcc-snapshot | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.04:LTS | gcc-snapshot | no fix listed | UBUNTU-CVE-2020-13844 |
| Ubuntu:26.10 | gcc-snapshot | no fix listed | UBUNTU-CVE-2020-13844 |
Affected products (as reported)
References
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability x_refsource_CONFIRM
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions x_refsource_CONFIRM
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation x_refsource_MISC
- https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html x_refsource_CONFIRM
- http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html x_refsource_CONFIRM
- openSUSE-SU-2020:1692 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1693 vendor-advisory, x_refsource_SUSE