Bug#918846: busybox: CVE-2018-20679

2019-02-08 Thread Moritz Mühlenhoff 
On Wed, Jan 09, 2019 at 09:39:33PM +0100, Salvatore Bonaccorso wrote:
> Source: busybox
> Version: 1:1.27.2-3
> Severity: normal
> Tags: patch security upstream
> Forwarded: https://bugs.busybox.net/show_bug.cgi?id=11506
> 
> Hi,
> 
> The following vulnerability was published for busybox.
> 
> CVE-2018-20679[0]:
> | An issue was discovered in BusyBox before 1.30.0. An out of bounds read
> | in udhcp components (consumed by the DHCP server, client, and relay)
> | allows a remote attacker to leak sensitive information from the stack
> | by sending a crafted DHCP message. This is related to verification in
> | udhcp_get_option() in networking/udhcp/common.c that 4-byte options are
> | indeed 4 bytes.
> 
> Note that the only once commit initially referenced for CVE-2018-20679
> is incomplete, but see security-tracker for further notes.

Fixed by:
https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c
https://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06

Can we please get that fixed before the buster freeze?

Cheers,
Moritz

Bug#918846: busybox: CVE-2018-20679

2019-01-09 Thread Salvatore Bonaccorso 
Source: busybox
Version: 1:1.27.2-3
Severity: normal
Tags: patch security upstream
Forwarded: https://bugs.busybox.net/show_bug.cgi?id=11506

Hi,

The following vulnerability was published for busybox.

CVE-2018-20679[0]:
| An issue was discovered in BusyBox before 1.30.0. An out of bounds read
| in udhcp components (consumed by the DHCP server, client, and relay)
| allows a remote attacker to leak sensitive information from the stack
| by sending a crafted DHCP message. This is related to verification in
| udhcp_get_option() in networking/udhcp/common.c that 4-byte options are
| indeed 4 bytes.

Note that the only once commit initially referenced for CVE-2018-20679
is incomplete, but see security-tracker for further notes.

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-2018-20679
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20679

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore