3.6 Low
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
3.3 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
22.1%
An issue was discovered in the Linux kernel before 5.7.3, related to
mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation,
when used for a copy-on-write page, does not properly consider the
semantics of read operations and therefore can grant unintended write
access, aka CID-17839856fd58.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | <Β 4.15.0-136.140 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | <Β 5.4.0-45.49 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | <Β 4.4.0-203.235 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | <Β 4.15.0-1094.101 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | <Β 5.4.0-1022.22 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | <Β 4.4.0-1086.90) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | <Β 4.4.0-1122.136 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | <Β 5.4.0-1022.22~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | <Β 4.15.0-1094.101~16.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | <Β 5.4.0-1023.23 | UNKNOWN |
bugs.chromium.org/p/project-zero/issues/detail?id=2045
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
git.kernel.org/linus/17839856fd588f4ab6b789f482ed3ffd7c403e1f
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f
launchpad.net/bugs/cve/CVE-2020-29374
nvd.nist.gov/vuln/detail/CVE-2020-29374
security-tracker.debian.org/tracker/CVE-2020-29374
ubuntu.com/security/notices/USN-4748-1
ubuntu.com/security/notices/USN-4749-1
www.cve.org/CVERecord?id=CVE-2020-29374
3.6 Low
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
3.3 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
22.1%