Amazon Linux AMI update for gnupg



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-4242
CWE-ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU32638

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-4242

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.

GnuPG before 1.4.14, and Libgcrypt before 1.5.3 as used in GnuPG 2.0.x and possibly other products, allows local users to obtain private RSA keys via a cache side-channel attack involving the L3 cache, aka Flush+Reload.

Mitigation

Update the affected packages:

i686:
    gnupg-debuginfo-1.4.14-1.20.amzn1.i686
    gnupg-1.4.14-1.20.amzn1.i686

src:
    gnupg-1.4.14-1.20.amzn1.src

x86_64:
    gnupg-1.4.14-1.20.amzn1.x86_64
    gnupg-debuginfo-1.4.14-1.20.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2013-225.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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