Permissions, Privileges, and Access Controls in openssl (Alpine package)

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU32855

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-3207

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

crypto/x509/x509_vfy.c in OpenSSL 1.0.x before 1.0.0e does not initialize certain structure members, which makes it easier for remote attackers to bypass CRL validation by using a nextUpdate value corresponding to a time in the past.

Mitigation

Install update from vendor's website.

Vulnerable software versions

openssl (Alpine package): 1.0.0d-r0 - 1.0.0b-r0

CPE2.3

• cpe:2.3:a:alpine:openssl_alpine_package:1.0.0d-r0:*:*:*:*:alpine_linux:*:2.1
• cpe:2.3:a:alpine:openssl_alpine_package:1.0.0c-r0:*:*:*:*:alpine_linux:*:2.0
• cpe:2.3:a:alpine:openssl_alpine_package:1.0.0b-r0:*:*:*:*:alpine_linux:*:2.1

External links

https://git.alpinelinux.org/aports/commit/?id=4910dc5071d93b4a02e12bee2afaadd9c22bbc52
https://git.alpinelinux.org/aports/commit/?id=b9f27ea7700779c0ddde47ebcf53e07763f3c737
https://git.alpinelinux.org/aports/commit/?id=e7a986225a493e6ad86497f2c180c81c451b8e58

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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