Bug#1059393: openssh: CVE-2023-51767

[Colin Watson]

On Fri, Feb 23, 2024 at 12:40:41PM +, P Tamil Selvam wrote:
> Pls. let us know the ETA by when openssh issue will be fixed in bookworm 
> release ?

No fix exists anywhere to my knowledge, so there is currently no ETA.
The right place to ask about a fix would be upstream.

-- 
Colin Watson (he/him)  [cjwat...@debian.org]

Bug#1059393: openssh: CVE-2023-51767

[P Tamil Selvam]

Hi Team,

Pls. let us know the ETA by when openssh issue will be fixed in bookworm 
release ?

Regards,
Tamil Selvam .P

Bug#1059393: openssh: CVE-2023-51767

[Salvatore Bonaccorso]

Source: openssh
Version: 1:9.6p1-2
Severity: important
Tags: security upstream
X-Debbugs-Cc: car...@debian.org, Debian Security Team 

Hi Colin,

The following vulnerability was published for openssh. This is for now
just to track the issue as pointed out by a current paper. Apparently
openssh and sudo got CVEs assigned for their respective issues.

CVE-2023-51767[0]:
| OpenSSH through 9.6, when common types of DRAM are used, might allow
| row hammer attacks (for authentication bypass) because the integer
| value of authenticated in mm_answer_authpassword does not resist
| flips of a single bit. NOTE: this is applicable to a certain threat
| model of attacker-victim co-location in which the attacker has user
| privileges.


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-2023-51767
https://www.cve.org/CVERecord?id=CVE-2023-51767
[1] https://arxiv.org/abs/2309.02545

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore