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amazonAmazonALAS-2016-659
HistoryMar 10, 2016 - 4:30 p.m.

Medium: rpcbind

2016-03-1016:30:00
alas.aws.amazon.com
20

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.049 Low

EPSS

Percentile

92.7%

Issue Overview:

A use-after-free flaw related to the PMAP_CALLIT operation and TCP/UDP connections was discovered in rpcbind. A remote, unauthenticated attacker could possibly exploit this flaw to crash the rpcbind service (denial of service) by performing a series of UDP and TCP calls.

Affected Packages:

rpcbind

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

New Packages:

i686:  
    rpcbind-0.2.0-11.8.amzn1.i686  
    rpcbind-debuginfo-0.2.0-11.8.amzn1.i686  
  
src:  
    rpcbind-0.2.0-11.8.amzn1.src  
  
x86_64:  
    rpcbind-debuginfo-0.2.0-11.8.amzn1.x86_64  
    rpcbind-0.2.0-11.8.amzn1.x86_64  

Additional References

Red Hat: CVE-2015-7236

Mitre: CVE-2015-7236

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.049 Low

EPSS

Percentile

92.7%