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amazonAmazonALAS-2017-848
HistoryJun 22, 2017 - 7:20 p.m.

Important: nss

2017-06-2219:20:00
alas.aws.amazon.com
17

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

0.032 Low

EPSS

Percentile

91.1%

Issue Overview:

Null pointer dereference when handling empty SSLv2 messages:
A null pointer dereference flaw was found in the way NSS handled empty SSLv2 messages. An attacker could use this flaw to crash a server application compiled against the NSS library. (CVE-2017-7502)

Affected Packages:

nss

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

New Packages:

i686:  
    nss-debuginfo-3.28.4-1.2.79.amzn1.i686  
    nss-sysinit-3.28.4-1.2.79.amzn1.i686  
    nss-devel-3.28.4-1.2.79.amzn1.i686  
    nss-pkcs11-devel-3.28.4-1.2.79.amzn1.i686  
    nss-tools-3.28.4-1.2.79.amzn1.i686  
    nss-3.28.4-1.2.79.amzn1.i686  
  
src:  
    nss-3.28.4-1.2.79.amzn1.src  
  
x86_64:  
    nss-debuginfo-3.28.4-1.2.79.amzn1.x86_64  
    nss-3.28.4-1.2.79.amzn1.x86_64  
    nss-pkcs11-devel-3.28.4-1.2.79.amzn1.x86_64  
    nss-sysinit-3.28.4-1.2.79.amzn1.x86_64  
    nss-tools-3.28.4-1.2.79.amzn1.x86_64  
    nss-devel-3.28.4-1.2.79.amzn1.x86_64  

Additional References

Red Hat: CVE-2017-7502

Mitre: CVE-2017-7502

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

0.032 Low

EPSS

Percentile

91.1%