UBUNTU-CVE-2019-19807
In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.
02 / AFFECTED SOFTWARE
Affected packages
19 explicit affected versions
49 explicit affected versions
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36 explicit affected versions
2 explicit affected versions
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18 explicit affected versions
37 explicit affected versions
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78 explicit affected versions
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12 explicit affected versions
1 explicit affected versions
1 explicit affected versions
23 explicit affected versions
1 explicit affected versions
26 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.
05 / REFERENCES
Further evidence
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e7af6307a8a54f0b873960b32b6a644f2d0fbd97
- https://git.kernel.org/linus/e7af6307a8a54f0b873960b32b6a644f2d0fbd97
- https://github.com/torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97
- https://ubuntu.com/security/CVE-2019-19807
- https://ubuntu.com/security/notices/USN-4225-1
- https://ubuntu.com/security/notices/USN-4227-1
- https://ubuntu.com/security/notices/USN-4227-2
- https://www.cve.org/CVERecord?id=CVE-2019-19807