Vulnerability · Published Dec 2, 2020 · Assigned by redhat
CVE-2020-14305
High 8.1
In plain English
A high-severity out-of-bounds write in kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.2% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.1High
Exploit odds (30 days)5.2%top 7.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 4.12.6-1 | DEBIAN-CVE-2020-14305 |
| Debian:13 | linux | 4.12.6-1 | DEBIAN-CVE-2020-14305 |
| Debian:14 | linux | 4.12.6-1 | DEBIAN-CVE-2020-14305 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-14305 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-14305 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-14305 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-14305 |
Affected products (as reported)
Weakness: CWE-787
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1850716 x_refsource_MISC
- https://bugs.openvz.org/browse/OVZ-7188 x_refsource_MISC
- https://patchwork.ozlabs.org/project/netfilter-devel/patch/c2385b5c-309c-cc64-2e10-a0ef62897502%40virtuozzo.com/ x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20201210-0004/ x_refsource_CONFIRM