openEuler update for lighttpd



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-22707
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

lighttpd-filesystem
Operating systems & Components / Operating system package or component

lighttpd-debugsource
Operating systems & Components / Operating system package or component

lighttpd-debuginfo
Operating systems & Components / Operating system package or component

lighttpd-mod_mysql_vhost
Operating systems & Components / Operating system package or component

lighttpd-mod_authn_pam
Operating systems & Components / Operating system package or component

lighttpd-mod_authn_gssapi
Operating systems & Components / Operating system package or component

lighttpd-fastcgi
Operating systems & Components / Operating system package or component

lighttpd-mod_authn_mysql
Operating systems & Components / Operating system package or component

lighttpd
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU59537

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-22707

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the mod_extforward_Forwarded function of the mod_extforward plugin. A remote attacker can send a specially crafted request to the web server, trigger an out-of-bounds read error and perform a denial of service attack.

Successful exploitation of the vulnerability requires a non-default configuration for handling of the Forwarded header.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

lighttpd-filesystem: before 1.4.53-2

lighttpd-debugsource: before 1.4.53-2

lighttpd-debuginfo: before 1.4.53-2

lighttpd-mod_mysql_vhost: before 1.4.53-2

lighttpd-mod_authn_pam: before 1.4.53-2

lighttpd-mod_authn_gssapi: before 1.4.53-2

lighttpd-fastcgi: before 1.4.53-2

lighttpd-mod_authn_mysql: before 1.4.53-2

lighttpd: before 1.4.53-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1491


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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