LOW
CVE-2020-29374
CWE-362Published: November 28, 2020· Updated: Jun 17, 2026
3.6
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2020-29374 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (18)
→
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.htmlExploit · Third Party Advisory · VDB Entry
→
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045Exploit · Issue Tracking · Third Party Advisory
→
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3Release Notes · Third Party Advisory · Vendor Advisory
→
→
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20210115-0002/Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5096Third Party Advisory
→
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.htmlExploit · Third Party Advisory · VDB Entry
→
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045Exploit · Issue Tracking · Third Party Advisory
→
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3Release Notes · Third Party Advisory · Vendor Advisory
→
→
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2020-29374
CVSS Score3.6 / 10
SeverityLOW
WeaknessCWE-362
CISA KEVNo
Affected3 vendor(s)
PublishedNov 28, 2020
Related CVEs (CWE-362)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-29374 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.