Arch Linux update for wget



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-13089
CVE-2017-13090
CVE-2017-6508
CWE-ID CWE-122
CWE-113
Exploitation vector Network
Public exploit N/A
Vulnerable software
Arch Linux
Operating systems & Components / Operating system

Vendor Arch Linux

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU8959

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13089

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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.

Mitigation

Update the affected package wget to version 1.19.2-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

http://security.archlinux.org/advisory/ASA-201710-34


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.

2) Heap-based buffer overflow

EUVDB-ID: #VU8960

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13090

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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.

Mitigation

Update the affected package wget to version 1.19.2-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

http://security.archlinux.org/advisory/ASA-201710-34


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.

3) CRLF injection

EUVDB-ID: #VU8989

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6508

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

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.

Mitigation

Update the affected package wget to version 1.19.2-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

http://security.archlinux.org/advisory/ASA-201710-34


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.



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