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CVE Record

CVE-2013-2179: X.Org xdm 1.1.10, 1.1.11, and possibly other versions, when performing authentication using certain impleme...

X.Org xdm 1.1.10, 1.1.11, and possibly other versions, when performing authentication using certain implementations of the crypt API function that can return NULL, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by attempting to log into an account whose password field contains invalid characters, as demonstrated using the crypt function from glibc 2.17 and later with (1) the "!" character in the salt portion of a password field or (2) a password that has been encrypted using DES or MD5 in FIPS-140 mode.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2013-2179 is a denial-of-service flaw in X.Org xdm authentication. On affected systems, a remote login attempt involving certain malformed or unsupported password fields can make xdm crash. The impact is service availability, not confirmed data theft or code execution. Exposure is most likely on legacy Unix/Linux systems still using X.Org xdm for graphical logins, especially with glibc 2.17+ or FIPS-related password hash constraints. Internet exposure is unclear from the sources. Prioritize remediation where xdm provides remote or shared graphical login services. For modern environments not using xdm, business urgency is likely low, but legacy systems should be checked. Mitigation focus: Apply vendor or distribution xdm security updates where available.; Review the upstream freedesktop.org xdm fix referenced by the CVE sources.; Check vendor guidance before changing authentication or password storage behavior..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2013-2179 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0ADP providers
2Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

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