Linux Kernel up to 5.0.7 Namespace Cleanup net/rds/tcp.c rds_tcp_kill_sock race condition
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.8 | $0-$5k | 0.00 |
A vulnerability was found in Linux Kernel up to 5.0.7 (Operating System) and classified as very critical. Affected by this issue is the function rds_tcp_kill_sock
of the file net/rds/tcp.c of the component Namespace Cleanup Handler. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:
An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel before 5.0.8. There is a race condition leading to a use-after-free, related to net namespace cleanup.
The bug was discovered 03/28/2019. The weakness was disclosed 05/08/2019 (Website). The advisory is shared for download at cdn.kernel.org. This vulnerability is handled as CVE-2019-11815 since 05/08/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/15/2023).
The vulnerability was handled as a non-public zero-day exploit for at least 41 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172398 (OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2019:1407-1)).
Upgrading to version 5.0.8 eliminates this vulnerability. The upgrade is hosted for download at git.kernel.org.
bleepingcomputer.com is providing further details. The entries 133998, 134452, 134460 and 134461 are pretty similar.
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: 9.0VulDB Meta Temp Score: 8.8
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.1
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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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: Race conditionCWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Kernel 5.0.8
Patch: git.kernel.org
Timeline
03/28/2019 🔍05/08/2019 🔍
05/08/2019 🔍
05/08/2019 🔍
05/09/2019 🔍
09/15/2023 🔍
Sources
Vendor: kernel.orgAdvisory: K32019083
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2019-11815 (🔍)
SecurityFocus: 108283 - Linux Kernel CVE-2019-11815 Race Condition Vulnerability
Misc.: 🔍
See also: 🔍
Entry
Created: 05/09/2019 07:03Updated: 09/15/2023 08:57
Changes: 05/09/2019 07:03 (69), 06/09/2020 15:46 (3), 09/15/2023 08:57 (6)
Complete: 🔍
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