Multivendor Vulnerability Alert
Linux Kernel mwifiex Driver mwifiex_uap_parse_tail_ies() Function Heap Overflow Vulnerability
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

A vulnerability in the mwifiex driver component of the Linux Kernel could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.
The vulnerability exists in the mwifiex_uap_parse_tail_ies() function, as defined in the drivers/net/wireless/marvell/mwifiex/ie.c source code file of the affected software, and is due to improper memory operations by the Linux Kernel. The vulnerability manifests as a heap overflow memory error condition. An attacker could exploit this vulnerability by sending requests that submit malicious input to the targeted system. A successful exploit could allow the attacker to cause a heap overflow that could be used to execute arbitrary code.
Kernel.org has confirmed the vulnerability and released software updates.

To exploit this vulnerability, the attacker must send malicious requests to the targeted system, making exploitation more difficult in environments that restrict network access from untrusted sources.

Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.
Administrators may consider using IPbased access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
Administrators are advised to monitor affected systems.

Kernel.org has confirmed the vulnerability in a mailing list post at the following link: Re: [PATCH] mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies()

Kernel.org has committed a source code patch to the linuxnext kernel at the following link; however, at the time this alert was first published, the update had not yet been backported to the stable kernel or included in a stable release: linuxnext: Tree for Jun 18

Version Description Section Date 1 Initial public release. — 2019June19

The security vulnerability applies to the following combinations of products.
Primary Products Linus Torvalds Linux Kernel Original Release (Base)  2.0.0 (Base)  2.0.1 (Base)  2.0.2 (Base)  2.0.3 (Base)  2.0.4 (Base)  2.0.5 (Base)  2.0.6 (Base)  2.0.7 (Base)  2.0.8 (Base)  2.0.9 (Base)  2.0.10 (Base)  2.0.11 (Base)  2.0.12 (Base)  2.0.13 (Base)  2.0.14 (Base)  2.0.15 (Base)  2.0.16 (Base)  2.0.17 (Base)  2.0.18 (Base)  2.0.19 (Base)  2.0.20 (Base)  2.0.21 (Base)  2.0.22 (Base)  2.0.23 (Base)  2.0.24 (Base)  2.0.25 (Base)  2.0.26 (Base)  2.0.27 (Base)  2.0.28 (Base)  2.0.29 (Base)  2.0.30 (Base)  2.0.31 (Base)  2.0.32 (Base)  2.0.33 (Base)  2.0.34 (Base)  2.0.35 (Base)  2.0.36 (Base)  2.0.37 (Base)  2.0.38 (Base)  2.0.39 (Base)  2.2.0 (Base)  2.2.1 (Base)  2.2.2 (Base)  2.2.3 (Base)  2.2.4 (Base)  2.2.5 (Base)  2.2.6 (Base)  2.2.7 (Base)  2.2.8 (Base)  2.2.9 (Base)  2.2.10 (Base)  2.2.11 (Base)  2.2.12 (Base)  2.2.13 (Base)  2.2.14 (Base)  2.2.15 (Base)  2.2.16 (Base)  2.2.17 (Base)  2.2.18 (Base)  2.2.19 (Base)  2.2.20 (Base)  2.2.21 (Base)  2.2.22 (Base)  2.2.23 (Base)  2.2.24 (Base)  2.2.25 (Base)  2.2.26 (Base)  2.4.0 (Base)  2.4.0test10 (Base)  2.4.0test9 (Base)  2.4.1 (Base)  2.4.2 (Base)  2.4.3 (Base)  2.4.4 (Base)  2.4.5 (Base)  2.4.6 (Base)  2.4.7 (Base)  2.4.8 (Base)  2.4.9 (Base)  2.4.10 (Base)  2.4.11 (Base)  2.4.12 (Base)  2.4.13 (Base)  2.4.14 (Base)  2.4.15 (Base)  2.4.16 (Base)  2.4.17 (Base)  2.4.18 (Base)  2.4.19 (Base)  2.4.20 (Base)  2.4.21 (Base)  2.4.22 (Base)  2.4.23 (Base)  2.4.24 (Base)  2.4.25 (Base)  2.4.26 (Base)  2.4.27 (Base)  2.4.28 (Base)  2.4.29 (Base)  2.4.30 (Base)  2.4.31 (Base)  2.4.32 (Base)  2.4.33 (Base, .1, .2, .3, .4, .5, .6, .7)  2.4.34 (Base, .1, .2, .3, .4, .5, .6)  2.4.35 (Base, .1, .2, .3, .4, .5)  2.4.36 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9)  2.4.37 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.0 (.0)  2.6.1 (.0)  2.6.2 (.0)  2.6.3 (.0)  2.6.4 (.0)  2.6.5 (.0)  2.6.6 (.0)  2.6.7 (.0)  2.6.8 (.0, .1)  2.6.9 (.0)  2.6.10 (.0)  2.6.11 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12)  2.6.12 (.0, .1, .2, .3, .4, .5, .6)  2.6.13 (.0, .1, .2, .3, .4, .5)  2.6.14 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.15 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.16 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .62)  2.6.17 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14)  2.6.18 (.0, .1, .2, .3, .4, .5, .6, .7, .8)  2.6.19 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.20 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21)  2.6.21 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.22 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19)  2.6.23 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17)  2.6.24 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.25 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20)  2.6.26 (.0, .1, .2, .3, .4, .5, .6, .7)  2.6.27 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60)  2.6.28 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10)  2.6.29 (.0, .1, .2, .3, .4, .6, .14)  2.6.30 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9)  2.6.31 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14)  2.6.32 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .63)  2.6.33 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20)  2.6.34 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14)  2.6.35 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14)  2.6.36 (Base, .1, .2, .3, .4)  2.6.37 (Base, .1, .2, .3, .34, .4, .5, .6)  2.6.38 (Base, .1, .2, .3, .4, .5, .6, .7, .8)  2.6.39 (Base, .1, .2, .3, .4)  3.0 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .62, .63, .64, .65, .66, .67, .68, .69, .70, .71, .72, .73, .74, .75, .76, .77, .78, .79, .80, .81, .82, .83, .84, .85, .86, .87, .88, .89, .90, .91, .92, .93, .94, .95, .96)  3.1 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10)  3.2 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .33, .34, .35, .36, .37, .38, .39, .31, .32, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57)  3.3 (Base, .1, .2, .3, 3.8, .4, .5, .6, .7, .8, .83.6)  3.4 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .62, .63, .64, .65, .66, .67, .68, .69, .70, .78, .88, .103, .107)  3.5 (.0, .1, .2, .3, .4, .5, .6, .7)  3.6 (.0, .1, .3, .11)  3.7 (.0, .1, .2, .3, .4, .5, .6, .7, .8)  3.8 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13)  3.9 (Base, .1, .2, .3, .4, .5, .6)  3.10 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .43, .44, .53, .55, .56, .61, .63, .65, .68, .94, .95, .96, .97, .98, .99, .100, .101, .102, .103, .104, .107, .108)  3.11 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10)  3.12 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19)  3.13 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .0)  3.14 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .28, .33)  3.15 (Base, .1, .2, .3, .4, .5, .6)  3.16 (Base, .1, .2, .3, .4, .5, .6, .7, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50)  3.17 (Base, .1, .2, .3, .4, .5, .6, .7, .8)  3.18 (.0, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .26)  3.19 (.1, .2, .3, .4, .5, .6, .7, .8)  4.0 (.1, .2, .3, .4, .5, .6)  4.0.1 (Base)  4.0.2 (Base)  4.0.3 (Base)  4.1 (Base, .1, .2, .3, .4, .5, .6, .20, .23, .34)  4.0.5 (Base)  4.0.6 (Base)  4.2 (Base, .0, .1, .2, .3, .4, .5, .6)  4.3 (Base, .3, .1, .6)  4.4 (.0, .2, .1, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .62, .63, .64, .65, .66, .67, .68, .69, .70, .71, .72, .73, .74, .75, .76, .77, .78, .79, .80, .81, .82, .83, .84, .85, .86, .87, .88, .89, .90, .91, .92, .93, .94, .95, .96, .97, .98, .99, .100, .101, .102, .103, .104, .106, .107, .108, .109, .110, .112, .113, .114, .115, .116, .117, .118, .119, .120, .121, .122, .123, .124, .125, .126, .127, .128, .129, .130, .131, .132, .133, .134, .135, .136, .137, .138, .139, .140, .141, .142, .143, .144, .145, .146, .147, .148, .149, .150, .151, .152, .153, .154, .155, .156, .157, .158, .159, .160, .161, .162, .163, .164, .165, .166, .167, .168, .169, .170, .171, .172, .173, .174, .175, .176, .177, .178, .179, .180, .181)  4.6 (.0, .1, .2, rc1, .3)  4.5 (.0, .1, .2, .3, .4)  4.7 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9)  4.8 (Base, .1, .2, .3, .12, .11, .10, .9, .8, .7, .6, .5, .4)  4.9 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .62, .63, .64, .65, .66, .67, .68, .69, .70, .71, .72, .73, .74, .75, .76, .77, .78, .79, .80, .81, .82, .83, .84, .85, .86, .87, .88, .89, .90, .91, .92, .93, .94, .95, .96, .97, .98, .99, .100, .101, .102, .103, .104, .105, .106, .107, .108, .109, .110, .111, .112, .113, .114, .115, .116, .117, .118, .119, .120, .121, .122, .123, .124, .125, .126, .127, .128, .129, .130, .131, .132, .133, .134, .135, .136, .137, .138, .139, .140, .141, .142, .143, .144, .145, .146, .147, .148, .149, .150, .151, .152, .153, .154, .155, .156, .157, .158, .159, .160, .161, .162, .163, .164, .165, .166, .167, .168, .169, .170, .171, .172, .173, .174, .175, .176, .177, .178, .179, .180, .181)  4.10 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .14, .15, .16, .17)  4.10.6 (Base)  4.11 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12)  4.12 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14)  4.13 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16)  4.14 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .36, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51, .52, .53, .54, .55, .56, .57, .58, .59, .60, .61, .62, .63, .64, .65, .66, .67, .68, .69, .70, .71, .72, .73, .74, .75, .76, .77, .78, .79, .80, .81, .82, .83, .84, .85, .86, .87, .88, .89, .90, .91, .92, .93, .94, .95, .96, .97, .98, .99, .100, .101, .102, .103, .104, .105, .106, .107, .108, .109, .110, .111, .112, .113, .114, .115, .116, .117, .118, .119, .120, .121, .122, .123, .124, .125, .126)  4.15 (Base, .0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18)  4.16 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18)  4.17 (Base, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19)  4.18 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20)  4.19 (.0, rc1, rc2, rc3, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15, .16, .17, .18, .19, .20, .21, .22, .23, .24, .25, .26, .27, .28, .29, .30, .31, .32, .33, .34, .35, .37, .38, .39, .40, .41, .42, .43, .44, .45, .46, .47, .48, .49, .50, .51)  4.20 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14)  5.0 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14, .15)  5.1 (.0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10) Associated Products

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