CVE-2011-1926 Other in n/a
Medium 5.1
Published
Updated
Check this codebase for CVE-2011-1926 and fix it if it is affected.
What it is: CVE-2011-1926 is a medium-severity vulnerability in n/a, published on 23 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-1926 in the wild and no public exploit code.
Affected product: n/a. 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/CVE-2011-1926/ (Markdown: https://insights.sbomify.com/CVE-2011-1926/index.md)
Man-in-the-middle attackers can inject commands into encrypted IMAP sessions due to improper I/O buffering in STARTTLS implementation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1926?
CVE-2011-1926 is a medium-severity vulnerability in n/a, published on 23 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The STARTTLS implementation in Cyrus IMAP Server before 2.4.7 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
Weakness: CWE-264
Which versions are affected by CVE-2011-1926?
It affects 1 product.
Linux distribution packages (37)
cyrus-imapd Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-debuginfo Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-devel Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-murder Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-nntp Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-utils Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
perl-Cyrus Red Hat:enterprise_linux:4::as | All versions | 0:2.2.12-15.el4 |
cyrus-imapd Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-devel Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-murder Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-nntp Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-utils Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
perl-Cyrus Red Hat:enterprise_linux:4::desktop | All versions | 0:2.2.12-15.el4 |
cyrus-imapd Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-debuginfo Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-devel Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-murder Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-nntp Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-utils Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
perl-Cyrus Red Hat:enterprise_linux:4::es | All versions | 0:2.2.12-15.el4 |
cyrus-imapd Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-debuginfo Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-devel Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-murder Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-nntp Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
cyrus-imapd-utils Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
perl-Cyrus Red Hat:enterprise_linux:4::ws | All versions | 0:2.2.12-15.el4 |
cyrus-imapd Red Hat:enterprise_linux:5::server | All versions | 0:2.3.7-7.el5_6.4 |
cyrus-imapd-debuginfo Red Hat:enterprise_linux:5::server | All versions | 0:2.3.7-7.el5_6.4 |
cyrus-imapd-devel Red Hat:enterprise_linux:5::server | All versions | 0:2.3.7-7.el5_6.4 |
cyrus-imapd-perl Red Hat:enterprise_linux:5::server | All versions | 0:2.3.7-7.el5_6.4 |
cyrus-imapd-utils Red Hat:enterprise_linux:5::server | All versions | 0:2.3.7-7.el5_6.4 |
cyrus-imapd Red Hat:enterprise_linux:6::server | All versions | 0:2.3.16-6.el6_1.2 |
cyrus-imapd-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.3.16-6.el6_1.2 |
cyrus-imapd-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.3.16-6.el6_1.2 |
cyrus-imapd-utils Red Hat:enterprise_linux:6::server | All versions | 0:2.3.16-6.el6_1.2 |
Products include Cmu Cyrus Imap Server.
How do I fix CVE-2011-1926?
Upgrade to a fixed version.
Is CVE-2011-1926 being exploited?
There is no known exploitation of CVE-2011-1926 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DSA-2242-1, DSA-2258-1, GHSA-w7v6-vm58-fw22, RHSA-2011:0859.