ALAS-2022-1560

Related Vulnerabilities: CVE-2021-44224   CVE-2021-44790  

There's a null pointer dereference and server-side request forgery flaw in httpd's mod_proxy module, when it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix Domain Socket requests. In the worst case, this could cause a denial of service or compromise to confidentiality of data. (CVE-2021-44224) A buffer overflow flaw in httpd's lua module could allow an out-of-bounds write. An attacker who is able to submit a crafted request to an httpd instance that is using the lua module may be able to cause an impact to confidentiality, integrity, and/or availability. (CVE-2021-44790)

ALAS-2022-1560


Amazon Linux AMI Security Advisory: ALAS-2022-1560
Advisory Release Date: 2022-01-18 20:14 Pacific
Advisory Updated Date: 2022-01-19 22:20 Pacific
Severity: Important

Issue Overview:

There's a null pointer dereference and server-side request forgery flaw in httpd's mod_proxy module, when it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix Domain Socket requests. In the worst case, this could cause a denial of service or compromise to confidentiality of data. (CVE-2021-44224)

A buffer overflow flaw in httpd's lua module could allow an out-of-bounds write. An attacker who is able to submit a crafted request to an httpd instance that is using the lua module may be able to cause an impact to confidentiality, integrity, and/or availability. (CVE-2021-44790)


Affected Packages:

httpd24


Issue Correction:
Run yum update httpd24 to update your system.

New Packages:
i686:
    mod24_ssl-2.4.52-1.95.amzn1.i686
    httpd24-2.4.52-1.95.amzn1.i686
    httpd24-devel-2.4.52-1.95.amzn1.i686
    httpd24-tools-2.4.52-1.95.amzn1.i686
    mod24_md-2.4.52-1.95.amzn1.i686
    mod24_proxy_html-2.4.52-1.95.amzn1.i686
    httpd24-debuginfo-2.4.52-1.95.amzn1.i686
    mod24_session-2.4.52-1.95.amzn1.i686
    mod24_ldap-2.4.52-1.95.amzn1.i686

noarch:
    httpd24-manual-2.4.52-1.95.amzn1.noarch

src:
    httpd24-2.4.52-1.95.amzn1.src

x86_64:
    mod24_ssl-2.4.52-1.95.amzn1.x86_64
    httpd24-tools-2.4.52-1.95.amzn1.x86_64
    mod24_ldap-2.4.52-1.95.amzn1.x86_64
    httpd24-debuginfo-2.4.52-1.95.amzn1.x86_64
    mod24_proxy_html-2.4.52-1.95.amzn1.x86_64
    mod24_session-2.4.52-1.95.amzn1.x86_64
    mod24_md-2.4.52-1.95.amzn1.x86_64
    httpd24-devel-2.4.52-1.95.amzn1.x86_64
    httpd24-2.4.52-1.95.amzn1.x86_64