Linux Kernel up to 5.6.6 net/xdp/xdp_umem.c xdp_umem_reg out-of-bounds write
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.6.6 (Operating System). Affected by this issue is the function xdp_umem_reg
of the file net/xdp/xdp_umem.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:
An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
The weakness was presented 05/05/2020. This vulnerability is handled as CVE-2020-12659 since 05/05/2020. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.
Upgrading to version 5.6.7 eliminates this vulnerability.
See 154747, 154746, 154745 and 154744 for similar entries.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Kernel 5.6.7
Timeline
05/05/2020 🔍05/05/2020 🔍
05/05/2020 🔍
10/15/2020 🔍
Sources
Vendor: kernel.orgStatus: Not defined
Confirmation: 🔍
CVE: CVE-2020-12659 (🔍)
See also: 🔍
Entry
Created: 05/05/2020 20:36Updated: 10/15/2020 11:33
Changes: 05/05/2020 20:36 (40), 05/05/2020 20:41 (18), 10/15/2020 11:33 (1)
Complete: 🔍
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