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amazonAmazonALAS-2017-840
HistoryJun 06, 2017 - 5:00 p.m.

Important: libtirpc

2017-06-0617:00:00
alas.aws.amazon.com
16

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.551 Medium

EPSS

Percentile

97.6%

JSON

Issue Overview:

Memory leak when failing to parse XDR strings or bytearrays
It was found that due to the way rpcbind uses libtirpc (libntirpc), a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer. (CVE-2017-8779)

Affected Packages:

libtirpc

Issue Correction:
Run yum update libtirpc to update your system.

New Packages:

i686:  
    libtirpc-0.2.4-0.8.14.amzn1.i686  
    libtirpc-devel-0.2.4-0.8.14.amzn1.i686  
    libtirpc-debuginfo-0.2.4-0.8.14.amzn1.i686  
  
src:  
    libtirpc-0.2.4-0.8.14.amzn1.src  
  
x86_64:  
    libtirpc-debuginfo-0.2.4-0.8.14.amzn1.x86_64  
    libtirpc-devel-0.2.4-0.8.14.amzn1.x86_64  
    libtirpc-0.2.4-0.8.14.amzn1.x86_64

Additional References

Red Hat: CVE-2017-8779

Mitre: CVE-2017-8779

Related

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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.551 Medium

EPSS

Percentile

97.6%

JSON
Related for ALAS-2017-840
nessus58suse7oraclelinux4osv6debian3cve2openvas38fedora4ibm6centos4ubuntu4amazon1archlinux3redhat5mageia2checkpoint_advisories2prion2zdt1veracode1ubuntucve2alpinelinux1gentoo1slackware2debiancve1packetstorm1hackerone2rosalinux1redhatcve1f51rapid7community1photon2cloudfoundry1