Overview
- Description
- An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.
- Source
- talos-cna@cisco.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 5.5
- Impact score
- 3.6
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
CVSS 3.0
- Type
- Secondary
- Base score
- 4
- Impact score
- 1.4
- Exploitability score
- 2.5
- Vector string
- CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 2.1
- Impact score
- 2.9
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:P/I:N/A:N
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "08CD832A-636A-4BF7-B1D2-2D244AEACDD1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:5.9.8:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D0602B82-405F-407B-8C88-7DB0C82D1165"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:5.10:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0CD159FA-170F-4389-9085-CACCF97ABB1E"
}
],
"operator": "OR"
}
]
}
]