Re: Multiple DoS issues fixed in Privoxy 3.0.32 stable

Related Vulnerabilities: CVE-2021-20272   CVE-2021-20273   CVE-2021-20274   CVE-2021-20275   CVE-2021-20276  
                							

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Re: Multiple DoS issues fixed in Privoxy 3.0.32 stable

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From: Fabian Keil &lt;freebsd-listen () fabiankeil de&gt;

Date: Sat, 6 Mar 2021 10:08:56 +0100

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Fabian Keil &lt;freebsd-listen () fabiankeil de&gt; wrote on 2021-02-28:

Privoxy 3.0.32 fixes multiple DoS issues and a couple of other bugs.
The issues also affect earlier Privoxy releases.
[...]
  - ssplit(): Remove an assertion that could be triggered with a
    crafted CGI request.
    Commit 2256d7b4d67. OVE-20210203-0001.
    Reported by: Joshua Rogers (Opera)

CVE-2021-20272.

  - cgi_send_banner(): Overrule invalid image types. Prevents a
    crash with a crafted CGI request if Privoxy is toggled off.
    Commit e711c505c48. OVE-20210206-0001.
    Reported by: Joshua Rogers (Opera)

CVE-2021-20273.

  - socks5_connect(): Don't try to send credentials when none are
    configured. Fixes a crash due to a NULL-pointer dereference
    when the socks server misbehaves.
    Commit 85817cc55b9. OVE-20210207-0001.
    Reported by: Joshua Rogers (Opera)

CVE-2021-20274.

  - chunked_body_is_complete(): Prevent an invalid read of size two.
    Commit a912ba7bc9c. OVE-20210205-0001.
    Reported by: Joshua Rogers (Opera)

CVE-2021-20275.

  - Obsolete pcre: Prevent invalid memory accesses with an invalid
    pattern passed to pcre_compile(). Note that the obsolete pcre code
    is scheduled to be removed before the 3.0.33 release. There has been
    a warning since 2008 already.
    Commit 28512e5b624. OVE-20210222-0001.
    Reported by: Joshua Rogers (Opera)

CVE-2021-20276.

Fabian
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Multiple DoS issues fixed in Privoxy 3.0.32 stable Fabian Keil (Feb 28)

Re: Multiple DoS issues fixed in Privoxy 3.0.32 stable Fabian Keil (Mar 06)

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