Buffer overflow in squid (Alpine package)



Published: 2019-12-31
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-12525
CWE-ID CWE-119
Exploitation vector Local network
Public exploit N/A
Vulnerable software
Subscribe
squid (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU20445

Risk: Medium

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

CVE-ID: CVE-2019-12525

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input passed via the Proxy-Authorization header when Squid is configured to use HTTP Digest authentication . A remote attacker can send specially crafted HTTP request to the proxy server and perform denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

squid (Alpine package): 3.5.28-r0 - 4.10-r0

External links

http://git.alpinelinux.org/aports/commit/?id=a2e4a10786598b2f40879a608a3090b4f1242065
http://git.alpinelinux.org/aports/commit/?id=e669c04c87f3b6f9826273154aebe26e89d75dc8


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



###SIDEBAR###