UBUNTU-CVE-2019-9213
In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.
02 / AFFECTED SOFTWARE
Affected packages
26 explicit affected versions
1 explicit affected versions
26 explicit affected versions
32 explicit affected versions
66 explicit affected versions
27 explicit affected versions
4 explicit affected versions
17 explicit affected versions
23 explicit affected versions
51 explicit affected versions
3 explicit affected versions
1 explicit affected versions
1 explicit affected versions
23 explicit affected versions
88 explicit affected versions
9 explicit affected versions
6 explicit affected versions
26 explicit affected versions
3 explicit affected versions
4 explicit affected versions
60 explicit affected versions
3 explicit affected versions
58 explicit affected versions
4 explicit affected versions
4 explicit affected versions
26 explicit affected versions
12 explicit affected versions
47 explicit affected versions
20 explicit affected versions
19 explicit affected versions
21 explicit affected versions
146 explicit affected versions
47 explicit affected versions
22 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.
05 / REFERENCES
Further evidence
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1
- https://ubuntu.com/security/CVE-2019-9213
- https://ubuntu.com/security/notices/USN-3930-1
- https://ubuntu.com/security/notices/USN-3930-2
- https://ubuntu.com/security/notices/USN-3931-1
- https://ubuntu.com/security/notices/USN-3931-2
- https://ubuntu.com/security/notices/USN-3932-1
- https://ubuntu.com/security/notices/USN-3932-2
- https://ubuntu.com/security/notices/USN-3933-1
- https://ubuntu.com/security/notices/USN-3933-2
- https://www.cve.org/CVERecord?id=CVE-2019-9213