CVE-2019-1761

Medium

Description

A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device. The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device.

SeverityMedium

CVSS4.3

Exploit probability—

Product

Cisco Ios

PublishedMar 28, 2019

First seenMar 28, 2019

Weakness typeCWE-665CWE-665

How to fix

Vendor advisories

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-ios-infoleak

Affected products

Product	Affected versions	Fixed in
cisco ios	12.2\(6\)i1, 12.2\(33\)cx, 12.2\(33\)cy, 12.2\(33\)cy1, 12.2\(33\)cy2, 12.2\(33\)ira, 12.2\(33\)irb, 12.2\(33\)irc, 12.2\(33\)ird, 12.2\(33\)ire, 12.2\(33\)ire1, 12.2\(33\)ire2, 12.2\(33\)irf, 12.2\(33\)irg, 12.2\(33\)irg1, 12.2\(33\)irh, 12.2\(33\)irh1, 12.2\(33\)mra, 12.2\(33\)mrb, 12.2\(33\)mrb1, 12.2\(33\)mrb2, 12.2\(33\)mrb3, 12.2\(33\)mrb4, 12.2\(33\)mrb5, 12.2\(33\)mrb6, 12.2\(33\)sb, 12.2\(33\)sb1, 12.2\(33\)sb1a, 12.2\(33\)sb1b, 12.2\(33\)sb2, 12.2\(33\)sb3, 12.2\(33\)sb4, 12.2\(33\)sb5, 12.2\(33\)sb6, 12.2\(33\)sb6a, 12.2\(33\)sb6b, 12.2\(33\)sb7, 12.2\(33\)sb8, 12.2\(33\)sb8a, 12.2\(33\)sb8b, 12.2\(33\)sb8c, 12.2\(33\)sb8d, 12.2\(33\)sb8e, 12.2\(33\)sb8f, 12.2\(33\)sb8g, 12.2\(33\)sb9, 12.2\(33\)sb10, 12.2\(33\)sb11, 12.2\(33\)sb12, 12.2\(33\)sb13, 12.2\(33\)sb14, 12.2\(33\)sb15, 12.2\(33\)sb16, 12.2\(33\)sb17, 12.2\(33\)sca, 12.2\(33\)sca1, 12.2\(33\)sca2, 12.2\(33\)scb, 12.2\(33\)scb1, 12.2\(33\)scb2, 12.2\(33\)scb3, 12.2\(33\)scb4, 12.2\(33\)scb5, 12.2\(33\)scb6, 12.2\(33\)scb7, 12.2\(33\)scb8, 12.2\(33\)scb9, 12.2\(33\)scb10, 12.2\(33\)scb11, 12.2\(33\)scc, 12.2\(33\)scc1, 12.2\(33\)scc2, 12.2\(33\)scc3, 12.2\(33\)scc4, 12.2\(33\)scc5, 12.2\(33\)scc6, 12.2\(33\)scc7, 12.2\(33\)scd, 12.2\(33\)scd1, 12.2\(33\)scd2, 12.2\(33\)scd3, 12.2\(33\)scd4, 12.2\(33\)scd5, 12.2\(33\)scd6, 12.2\(33\)scd7, 12.2\(33\)scd8, 12.2\(33\)sce, 12.2\(33\)sce1, 12.2\(33\)sce2, 12.2\(33\)sce3, 12.2\(33\)sce4, 12.2\(33\)sce5, 12.2\(33\)sce6, 12.2\(33\)scf, 12.2\(33\)scf1, 12.2\(33\)scf2, 12.2\(33\)scf3, 12.2\(33\)scf4, 12.2\(33\)scf5, 12.2\(33\)scg, 12.2\(33\)scg1, 12.2\(33\)scg2, 12.2\(33\)scg3, 12.2\(33\)scg4, 12.2\(33\)scg5, 12.2\(33\)scg6, 12.2\(33\)scg7, 12.2\(33\)sch, 12.2\(33\)sch0a, 12.2\(33\)sch1, 12.2\(33\)sch2, 12.2\(33\)sch2a, 12.2\(33\)sch3, 12.2\(33\)sch4, 12.2\(33\)sch5, 12.2\(33\)sch6, 12.2\(33\)sci, 12.2\(33\)sci1, 12.2\(33\)sci1a, 12.2\(33\)sci2, 12.2\(33\)sci2a, 12.2\(33\)sci3, 12.2\(33\)scj, 12.2\(33\)scj1a, 12.2\(33\)scj2, 12.2\(33\)scj2a, 12.2\(33\)scj2b, 12.2\(33\)scj2c, 12.2\(33\)scj3, 12.2\(33\)scj4, 12.2\(33\)srb, 12.2\(33\)srb1, 12.2\(33\)srb2, 12.2\(33\)srb3, 12.2\(33\)srb4, 12.2\(33\)srb5, 12.2\(33\)srb5a, 12.2\(33\)srb6, 12.2\(33\)srb7, 12.2\(33\)src, 12.2\(33\)src1, 12.2\(33\)src2, 12.2\(33\)src3, 12.2\(33\)src4, 12.2\(33\)src5, 12.2\(33\)src6, 12.2\(33\)srd, 12.2\(33\)srd1, 12.2\(33\)srd2, 12.2\(33\)srd2a, 12.2\(33\)srd3, 12.2\(33\)srd4, 12.2\(33\)srd4a, 12.2\(33\)srd5, 12.2\(33\)srd6, 12.2\(33\)srd7, 12.2\(33\)srd8, 12.2\(33\)sre, 12.2\(33\)sre0a, 12.2\(33\)sre1, 12.2\(33\)sre2, 12.2\(33\)sre3, 12.2\(33\)sre4, 12.2\(33\)sre5, 12.2\(33\)sre6, 12.2\(33\)sre7, 12.2\(33\)sre7a, 12.2\(33\)sre8, 12.2\(33\)sre9, 12.2\(33\)sre9a, 12.2\(33\)sre10, 12.2\(33\)sre11, 12.2\(33\)sre12, 12.2\(33\)sre13, 12.2\(33\)sre14, 12.2\(33\)sre15, 12.2\(33\)sre15a, 12.2\(33\)ste0, 12.2\(33\)sxi, 12.2\(33\)sxi1, 12.2\(33\)sxi2, 12.2\(33\)sxi2a, 12.2\(33\)sxi3, 12.2\(33\)sxi3a, 12.2\(33\)sxi3z, 12.2\(33\)sxi4, 12.2\(33\)sxi4a, 12.2\(33\)sxi5, 12.2\(33\)sxi5a, 12.2\(33\)sxi6, 12.2\(33\)sxi7, 12.2\(33\)sxi8, 12.2\(33\)sxi8a, 12.2\(33\)sxi9, 12.2\(33\)sxi9a, 12.2\(33\)sxi10, 12.2\(33\)sxi11, 12.2\(33\)sxi12, 12.2\(33\)sxi13, 12.2\(33\)sxi14	—

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