Vulnerability · Published May 4, 2020 · Assigned by mitre
CVE-2020-10933
Medium 5.3
In plain English
A medium-severity security flaw in the rubygem-abrt package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)2.5%top 15.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | rubygem-abrt | 0.3.0-4.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-abrt | 0.3.0-4.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-abrt | 0.3.0-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-abrt | 0.3.0-4.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-abrt | 0.3.0-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.3.0-4.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.3.0-4.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.3.0-4.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.3.0-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.3.0-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-bson | 4.5.0-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-bson | 4.3.0-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-bson | 4.3.0-2.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-bson | 4.5.0-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-bson-doc | 4.5.0-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-bson-doc | 4.5.0-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-bson-doc | 4.3.0-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-bson-doc | 4.3.0-2.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mongo | 2.8.0-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mongo | 2.5.1-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mongo | 2.5.1-2.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mongo | 2.8.0-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mongo-doc | 2.5.1-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mongo-doc | 2.8.0-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mongo-doc | 2.8.0-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mongo-doc | 2.5.1-2.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.2-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mysql2 | 0.4.10-4.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mysql2 | 0.4.10-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.2-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.4.10-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.5.2-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.4.10-4.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.5.2-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-pg | 1.0.0-2.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-pg | 1.1.4-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-pg | 1.1.4-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-pg | 1.0.0-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-pg-doc | 1.1.4-1.module_el8.5.0+2623+08a8ba32 | ALSA-2021:2588 |
| AlmaLinux:8 | rubygem-pg-doc | 1.0.0-2.module_el8.5.0+2625+ec418553 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-pg-doc | 1.0.0-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2587 |
| AlmaLinux:8 | rubygem-pg-doc | 1.1.4-1.module_el8.5.0+250+ba22dbf7 | ALSA-2021:2588 |
| Alpine:v3.20 | ruby | 2.6.6-r0 | ALPINE-CVE-2020-10933 |
| Alpine:v3.21 | ruby | 2.6.6-r0 | ALPINE-CVE-2020-10933 |
| Alpine:v3.22 | ruby | 2.6.6-r0 | ALPINE-CVE-2020-10933 |
| Alpine:v3.23 | ruby | 2.6.6-r0 | ALPINE-CVE-2020-10933 |
| Alpine:v3.24 | ruby | 2.6.6-r0 | ALPINE-CVE-2020-10933 |
| Rocky Linux:8 | ruby | 0:2.5.9-107.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
| Rocky Linux:8 | ruby | 0:2.6.7-107.module+el8.4.0+593+8d7f9f0c | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-abrt | 0:0.3.0-4.module+el8.3.0+167+5c390590 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-abrt | 0:0.3.0-4.module+el8.3.0+167+5c390590 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-abrt | 0:0.3.0-4.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-abrt | 0:0.3.0-4.module+el8.4.0+592+03ff458a | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-abrt | 0:0.3.0-4.module+el8.5.0+738+032c9c02 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-abrt | 0:0.3.0-4.module+el8.5.0+738+032c9c02 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-bson | 0:4.5.0-1.module+el8.4.0+593+8d7f9f0c | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-bson | 0:4.3.0-2.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-bson | 0:4.3.0-2.module+el8.3.0+167+5c390590 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-bson | 0:4.5.0-1.module+el8.4.0+446+80b53620 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-bundler | 0:1.16.1-3.module+el8.3.0+167+5c390590 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-bundler | 0:1.16.1-3.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-mongo | 0:2.5.1-2.module+el8.4.0+349+3470f258 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-mongo | 0:2.5.1-2.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-mongo | 0:2.8.0-1.module+el8.4.0+593+8d7f9f0c | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-mongo | 0:2.8.0-1.module+el8.4.0+446+80b53620 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.2-1.module+el8.4.0+593+8d7f9f0c | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.4.10-4.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.2-1.module+el8.4.0+446+80b53620 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.4.10-4.module+el8.5.0+739+43897a5e | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.2-1.module+el8.5.0+738+032c9c02 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.4.10-4.module+el8.3.0+167+5c390590 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-pg | 0:1.0.0-2.module+el8.3.0+167+5c390590 | RLSA-2021:2587 |
| Rocky Linux:8 | rubygem-pg | 0:1.1.4-1.module+el8.5.0+738+032c9c02 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-pg | 0:1.1.4-1.module+el8.4.0+446+80b53620 | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-pg | 0:1.1.4-1.module+el8.4.0+593+8d7f9f0c | RLSA-2021:2588 |
| Rocky Linux:8 | rubygem-pg | 0:1.0.0-2.module+el8.4.0+592+03ff458a | RLSA-2021:2587 |
Affected products (as reported)
References
- https://www.ruby-lang.org/en/news/2020/03/31/heap-exposure-in-socket-cve-2020-10933/ x_refsource_CONFIRM
- FEDORA-2020-a95706b117 vendor-advisory, x_refsource_FEDORA
- https://security.netapp.com/advisory/ntap-20200625-0001/ x_refsource_CONFIRM
- DSA-4721 vendor-advisory, x_refsource_DEBIAN