openSUSE-SU-2019:2017-1 Recommended update for putty
Not scored
Published
Check this codebase for openSUSE-SU-2019:2017-1 and fix it if it is affected.
What it is: openSUSE-SU-2019:2017-1 is a vulnerability in putty, published on 26 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of openSUSE-SU-2019:2017-1 in the wild and no public exploit code.
Affected product: putty. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/openSUSE-SU-2019-2017-1/ (Markdown: https://insights.sbomify.com/openSUSE-SU-2019-2017-1/index.md)
Attackers can bypass host key checks or cause crashes in PuTTY SSH clients via malicious servers or impersonated agents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is openSUSE-SU-2019:2017-1?
openSUSE-SU-2019:2017-1 is a vulnerability in putty, published on 26 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
This update for putty fixes the following issues:
Update to new upstream release 0.72 [boo#1144547, boo#1144548]
- Fixed two separate vulnerabilities affecting the obsolete SSH-1 protocol, both available before host key checking.
- Fixed a vulnerability in all the SSH client tools (PuTTY, Plink, PSFTP and PSCP) if a malicious program can impersonate Pageant.
- Fixed a crash in GSSAPI / Kerberos key exchange triggered if the server provided an ordinary SSH host key as part of the exchange.
This update was imported from the openSUSE:Leap:15.0:Update update project.
Which versions are affected by openSUSE-SU-2019:2017-1?
Linux distribution packages (2)
putty SUSE:Package Hub 15 | All versions | 0.72-bp151.4.3.1 |
putty SUSE:Package Hub 15 SP1 | All versions | 0.72-bp151.4.3.1 |
How do I fix openSUSE-SU-2019:2017-1?
Upgrade to a fixed version.
Is openSUSE-SU-2019:2017-1 being exploited?
There is no known exploitation of openSUSE-SU-2019:2017-1 in the wild and no public exploit code.