Information disclosure in postgresql (Alpine package)

1) Information disclosure

EUVDB-ID: #VU32375

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-5288

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The crypt function in contrib/pgcrypto in PostgreSQL before 9.0.23, 9.1.x before 9.1.19, 9.2.x before 9.2.14, 9.3.x before 9.3.10, and 9.4.x before 9.4.5 allows attackers to cause a denial of service (server crash) or read arbitrary server memory via a "too-short" salt.

Mitigation

Install update from vendor's website.

Vulnerable software versions

postgresql (Alpine package): 9.0.5-r0 - 9.3.7-r0

External links

http://git.alpinelinux.org/aports/commit/?id=2d37e1a18bfa6fd4b1e2a540f50a273fd8f29a48
http://git.alpinelinux.org/aports/commit/?id=b00395849373651c7fb5b1c1d44454b73db2b480
http://git.alpinelinux.org/aports/commit/?id=86e868a5e1befbf6b37885f9e1c4835d34b3c078
http://git.alpinelinux.org/aports/commit/?id=0f28cb4563020e8535732a3f4c4768b1b72930b9

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.