Information disclosure in libgcrypt (Alpine package)



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
 libgcrypt (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

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

Install update from vendor's website.

Vulnerable software versions

libgcrypt (Alpine package): 1.4.5-r0 - 1.5.2-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=6e323da51f93cc5ca6159bc38b4213ca2c50d915
https://git.alpinelinux.org/aports/commit/?id=d8160ad518661bfb786e175f942fb4371446953c
https://git.alpinelinux.org/aports/commit/?id=b118fe90a7bc4d92a90c96ca681d9650d794ed44


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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