CVE-2013-4122
No known exploitation. EPSS puts it in the 89th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
3.6% chance of exploitation activity in the next 30 days, which ranks it in the 89th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 4624 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified
Affected products
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:N/AC:M/Au:N/C:N/I:N/A:P
Scored 4.3 by NVD.
How it is reached
- Access Vector NetworkExploitable remotely over the network
- Access Complexity MediumSome conditions must be met
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability PartialReduced performance or service disruption
Weaknesses
Sources
References in the record
- security.gentoo.org/glsa/glsa-201309-01.xml
- git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d
- linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/
And 6 more references. See all after sign-in
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