SB2017103010 - Arch Linux update for wget

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2017-13089)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to heap-based buffer overflow in the skip_short_body() function in 'src/http.c' when processing HTTP chunk size values. A remote attacker can send specially crafted HTTP data, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Heap-based buffer overflow (CVE-ID: CVE-2017-13090)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to heap-based buffer overflow in the fd_read_body() function in 'src/retr.c'' when processing HTTP chunk size values. A remote attacker can send specially crafted HTTP data, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) CRLF injection (CVE-ID: CVE-2017-6508)

The vulnerability allows a remote attacker to perform content spoofing attack.

The vulnerability exists due to an error in the url_parse() function in url.c in Wget through 1.19.1. A remote attacker can inject arbitrary HTTP headers via CRLF sequences in the host subcomponent of a URL and spoof contents of the targeted website.

Remediation

Install update from vendor's website.

References

• https://security.archlinux.org/advisory/ASA-201710-34