Arch Linux Security Advisory ASA-201903-5

Severity: High
Date : 2019-03-03
CVE-ID : CVE-2019-8904 CVE-2019-8905 CVE-2019-8906 CVE-2019-8907
Package : file
Type : multiple issues
Remote : Yes
Link : https://security.archlinux.org/AVG-907

Summary

The package file before version 5.36-1 is vulnerable to multiple issues
including information disclosure and denial of service.

Resolution

Upgrade to 5.36-1.

pacman -Syu “file>=5.36-1”

The problems have been fixed upstream in version 5.36.

Workaround

None.

Description

• CVE-2019-8904 (information disclosure)

do_bid_note in readelf.c in libmagic.a in file 5.35 has a stack-based
buffer over-read, related to file_printf and file_vprintf.

• CVE-2019-8905 (information disclosure)

do_core_note in readelf.c in libmagic.a in file 5.35 has a stack-based
buffer over-read, related to file_printable, a different vulnerability
than CVE-2018-10360.

• CVE-2019-8906 (information disclosure)

do_core_note in readelf.c in libmagic.a in file 5.35 has an out-of-
bounds read because memcpy is misused.

• CVE-2019-8907 (denial of service)

do_core_note in readelf.c in libmagic.a in file 5.35 allows remote
attackers to cause a denial of service (stack corruption and
application crash) or possibly have unspecified other impact.

Impact

A remote attack is able to display sensitive information within the
file process or cause a crash via a crafted ELF file.

References

https://bugs.astron.com/view.php?id=62
https://bugs.astron.com/view.php?id=63
https://github.com/file/file/commit/2858eaf99f6cc5aae129bcbf1e24ad160240185f
https://bugs.astron.com/view.php?id=64
https://bugs.astron.com/view.php?id=65
https://security.archlinux.org/CVE-2019-8904
https://security.archlinux.org/CVE-2019-8905
https://security.archlinux.org/CVE-2019-8906
https://security.archlinux.org/CVE-2019-8907