ASA-2019-00641 – Linux kernel: Memory leak in af9005_identify_state()

Posted on by Allele Security Intelligence in Alerts

Allele Security Alert

ASA-2019-00641

Identifier(s)

ASA-2019-00641, CVE-2019-18809, CID-2289adbfa559

Title

Memory leak in af9005_identify_state()

Vendor(s)

Linux foundation

Product(s)

Linux kernel

Affected version(s)

Linux kernel versions since the following commit:

V4L/DVB (5625): Add support for the AF9005 demodulator from Afatech
https://github.com/torvalds/linux/commit/af4e067e1dcf926d9523dff11e46c45fd9fa9da2

Fixed version(s)

Linux kernel versions with the following commit applied:

media: usb: fix memory leak in af9005_identify_state
https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928

Proof of concept

Unknown

Description

A memory leak in the af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c in the Linux kernel allows attackers to cause a denial of service (memory consumption).

Technical details

Unknown

Credits

Unknown

Reference(s)

media: usb: fix memory leak in af9005_identify_state
https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928

V4L/DVB (5625): Add support for the AF9005 demodulator from Afatech
https://github.com/torvalds/linux/commit/af4e067e1dcf926d9523dff11e46c45fd9fa9da2

media: usb: fix memory leak in af9005_identify_state
https://git.linuxtv.org/media_tree.git/commit/?id=2289adbfa559050d2a38bcd9caac1c18b800e928

CVE-2019-18809
https://security-tracker.debian.org/tracker/CVE-2019-18809

CVE-2019-18809 in Ubuntu
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-18809.html

CVE-2019-18809 | SUSE
https://www.suse.com/security/cve/CVE-2019-18809

CVE-2019-18809
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18809

CVE-2019-18809
https://nvd.nist.gov/vuln/detail/CVE-2019-18809

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Last modified: December 10, 2019

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