Bug 1161520 (CVE-2019-19053) - VUL-0: CVE-2019-19053: kernel-source: memory leak in the rpmsg_eptdev_write_iter() function in drivers/rpmsg/rpmsg_char.c
Summary: VUL-0: CVE-2019-19053: kernel-source: memory leak in the rpmsg_eptdev_write_i...
Status: RESOLVED FIXED
Alias: CVE-2019-19053
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P5 - None : Major
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/247491/
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Reported: 2020-01-22 10:25 UTC by Alexandros Toptsoglou
Modified: 2024-06-25 14:17 UTC (History)
2 users (show)

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Found By: Security Response Team
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Description Alexandros Toptsoglou 2020-01-22 10:25:15 UTC 
CVE-2019-19053

A memory leak in the rpmsg_eptdev_write_iter() function in drivers/rpmsg/rpmsg_char.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering copy_from_iter_full() failures
 
Upstream commit:

https://github.com/torvalds/linux/commit/bbe692e349e2a1edf3fe0a29a0e05899c9c94d51

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1775056
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19053
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-19053.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19053
https://github.com/torvalds/linux/commit/bbe692e349e2a1edf3fe0a29a0e05899c9c94d51
https://security.netapp.com/advisory/ntap-20191205-0001/
Comment 1 Takashi Iwai 2020-01-22 11:53:20 UTC 
The fix is needed only after the code change to iter read/write, commit
ccf45b18ce89f598c69a0c945ced1635013fc0b1
    rpmsg: char: Migrate to iter versions of read and write
which was 4.20-rc1.

So only SLE15-SP2 needs the fix, and it was backported.

Reassigned back to security team.
Comment 2 Alexandros Toptsoglou 2020-01-22 12:14:34 UTC 
Done