mapcache: CVE-2022-30045 incorrect memory handling leading to a heap out-of-bounds read

Debian Bug report logs - #1014389
mapcache: CVE-2022-30045 incorrect memory handling leading to a heap out-of-bounds read

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Neil Williams <codehelp@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: mapcache: CVE-2022-30045 incorrect memory handling leading to a heap out-of-bounds read

Date: Tue, 05 Jul 2022 10:14:44 +0100

Source: mapcache
Version: 1.12.1-1
Severity: important
Tags: security
X-Debbugs-Cc: codehelp@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for mapcache.

CVE-2022-30045[0]:
| An issue was discovered in libezxml.a in ezXML 0.8.6. The function
| ezxml_decode() performs incorrect memory handling while parsing
| crafted XML files, leading to a heap out-of-bounds read.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-30045
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30045

Please adjust the affected versions in the BTS as needed.


-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.17.0-2-amd64 (SMP w/6 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Message #10 received at 1014389@bugs.debian.org (full text, mbox, reply):

From: Sebastiaan Couwenberg <sebastic@xs4all.nl>

To: Neil Williams <codehelp@debian.org>, 1014389@bugs.debian.org

Subject: Re: Bug#1014389: mapcache: CVE-2022-30045 incorrect memory handling leading to a heap out-of-bounds read

Date: Tue, 5 Jul 2022 11:58:12 +0200

On 7/5/22 11:14, Neil Williams wrote:
> CVE-2022-30045[0]:
> | An issue was discovered in libezxml.a in ezXML 0.8.6. The function
> | ezxml_decode() performs incorrect memory handling while parsing
> | crafted XML files, leading to a heap out-of-bounds read.

How is this different from #989363?

It's another ezxml bug that needs to be fixed by updating the embedded 
copy of switching to something else.

I'm tempted to merge these two issues.

Kind Regards,

Bas

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