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UBUNTU-CVE-2023-1195 Moderate

UBUNTU-CVE-2023-1195

A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request.

Exploit probability Not scored
Published March 7, 2023
Required by Not available
Last source change August 17, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:Pro:20.04:LTS linux-azure

116 explicit affected versions

Ubuntu:20.04:LTS linux-intel-iotg-5.15

10 explicit affected versions

Ubuntu:22.04:LTS linux-ibm

16 explicit affected versions

Ubuntu:18.04:LTS linux-oem

50 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.0

6 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.11

12 explicit affected versions

Ubuntu:20.04:LTS linux-raspi2

6 explicit affected versions

Ubuntu:22.04:LTS linux

25 explicit affected versions

Ubuntu:22.04:LTS linux-gkeop

11 explicit affected versions

Ubuntu:Pro:FIPS-updates:20.04:LTS linux-fips

12 explicit affected versions

Ubuntu:22.04:LTS linux-azure

22 explicit affected versions

Ubuntu:20.04:LTS linux-lowlatency-hwe-5.15

11 explicit affected versions

Ubuntu:22.04:LTS linux-gke

17 explicit affected versions

Ubuntu:22.04:LTS linux-azure-5.19

2 explicit affected versions

Ubuntu:22.04:LTS linux-raspi

19 explicit affected versions

Ubuntu:20.04:LTS linux-kvm

38 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.14

35 explicit affected versions

Ubuntu:20.04:LTS linux-gke-5.15

8 explicit affected versions

Ubuntu:22.04:LTS linux-azure-fde

6 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.13

13 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.8

4 explicit affected versions

Ubuntu:16.04:LTS linux-hwe-edge

23 explicit affected versions

Ubuntu:24.04:LTS linux-raspi-realtime

1 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.8

21 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.13

16 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.0

7 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

12 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.15

10 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.11

12 explicit affected versions

Ubuntu:20.04:LTS linux-intel-5.13

7 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-azure-5.4

104 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.13

12 explicit affected versions

Ubuntu:20.04:LTS linux-gcp

42 explicit affected versions

Ubuntu:20.04:LTS linux

50 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.11

12 explicit affected versions

Ubuntu:18.04:LTS linux-gke-5.4

37 explicit affected versions

Ubuntu:Pro:Realtime:22.04:LTS linux-intel-iot-realtime

1 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.10

26 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.13

13 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.6

29 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.3

13 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency

22 explicit affected versions

Ubuntu:22.04:LTS linux-aws

21 explicit affected versions

Ubuntu:20.04:LTS linux-aws

43 explicit affected versions

Ubuntu:18.04:LTS linux-gke-4.15

33 explicit affected versions

Ubuntu:22.04:LTS linux-riscv

23 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.3

10 explicit affected versions

Ubuntu:Nvidia-BlueField:24.04:LTS linux-bluefield

11 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.11

12 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.8

7 explicit affected versions

Ubuntu:20.04:LTS linux-oracle

41 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.15

11 explicit affected versions

Ubuntu:22.04:LTS linux-nvidia

6 explicit affected versions

Ubuntu:22.04:LTS linux-oracle

19 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-5.4

38 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency-hwe-5.19

2 explicit affected versions

Ubuntu:22.04:LTS linux-oem-5.17

26 explicit affected versions

Ubuntu:22.04:LTS linux-oem-6.0

16 explicit affected versions

Ubuntu:22.04:LTS linux-kvm

22 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.15

12 explicit affected versions

Ubuntu:20.04:LTS linux-ibm

9 explicit affected versions

Ubuntu:20.04:LTS linux-gke

20 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.13

12 explicit affected versions

Ubuntu:22.04:LTS linux-intel-iotg

11 explicit affected versions

Ubuntu:Nvidia-BlueField:22.04:LTS linux-bluefield

1 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.8

5 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.4

32 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.4

31 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.11

13 explicit affected versions

Ubuntu:Pro:FIPS-updates:20.04:LTS linux-azure-fips

72 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.15

14 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.8

10 explicit affected versions

Ubuntu:20.04:LTS linux-nvidia-tegra-5.15

3 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.13

12 explicit affected versions

Ubuntu:18.04:LTS linux-azure

44 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.3

16 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.11

13 explicit affected versions

Ubuntu:20.04:LTS linux-azure-fde

26 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop-5.15

8 explicit affected versions

Ubuntu:18.04:LTS linux-gkeop-5.4

37 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

38 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.15

12 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.3

9 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.15

12 explicit affected versions

Ubuntu:22.04:LTS linux-hwe-5.19

3 explicit affected versions

Ubuntu:22.04:LTS linux-gcp

20 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.4

31 explicit affected versions

Ubuntu:20.04:LTS linux-bluefield

12 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.8

4 explicit affected versions

Ubuntu:Pro:Realtime:22.04:LTS linux-realtime

17 explicit affected versions

Ubuntu:18.04:LTS linux-hwe

43 explicit affected versions

Ubuntu:18.04:LTS linux-azure-edge

4 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop

20 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

related USN-5970-1

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2023-1195

A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request.

View original source

05 / REFERENCES

Further evidence