Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 792336 (CVE-2021-32614, CVE-2021-3548) - sys-fs/dmg2img: Multiple vulnerabilities (CVE-2021-{32614,3548})
Summary: sys-fs/dmg2img: Multiple vulnerabilities (CVE-2021-{32614,3548})
Status: IN_PROGRESS
Alias: CVE-2021-32614, CVE-2021-3548
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
URL:
Whiteboard: B2 [upstream]
Keywords:
Depends on:
Blocks:
 
Reported: 2021-05-26 23:53 UTC by Sam James
Modified: 2021-07-29 18:10 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Sam James archtester Gentoo Infrastructure gentoo-dev Security 2021-05-26 23:53:45 UTC
* CVE-2021-32614

Description:
"A flaw was found in dmg2img through 20170502. fill_mishblk() does not check the length of the read buffer, and copy 0xCC bytes from it. The length of the buffer is controlled by an attacker. By providing a length smaller than 0xCC, memcpy reaches out of the malloc'ed bound. This possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution."

https://github.com/Lekensteyn/dmg2img/issues/11
https://bugzilla.redhat.com/show_bug.cgi?id=1959911

* CVE-2021-3548

Description:
"A flaw was found in dmg2img through 20170502. dmg2img did not validate the size of the read buffer during memcpy() inside the main() function. This possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution."

https://github.com/Lekensteyn/dmg2img/issues/9
https://bugzilla.redhat.com/show_bug.cgi?id=1959585
Comment 1 NATTkA bot gentoo-dev 2021-07-29 17:22:11 UTC Comment hidden (obsolete)
Comment 2 NATTkA bot gentoo-dev 2021-07-29 17:30:25 UTC Comment hidden (obsolete)
Comment 3 NATTkA bot gentoo-dev 2021-07-29 17:38:21 UTC Comment hidden (obsolete)
Comment 4 NATTkA bot gentoo-dev 2021-07-29 17:46:29 UTC Comment hidden (obsolete)
Comment 5 NATTkA bot gentoo-dev 2021-07-29 18:02:28 UTC Comment hidden (obsolete)
Comment 6 NATTkA bot gentoo-dev 2021-07-29 18:10:45 UTC
Package list is empty or all packages have requested keywords.