CVE-2011-5244Network attack vector

Process crash via off-by-one AFM token parsing

Published Nov 19, 2012 · Updated Aug 7, 2024

Memory corruption in t1lib's AFM parser allows remote attackers to crash the process through a crafted DVI file. The token and linetoken functions in backend/dvi/mdvi-lib/afmparse.c make off-by-one writes while extracting tokens from embedded Adobe Font Metrics data. A user must process the attacker-supplied DVI content in a t1lib consumer such as teTeX 3.0.x or GNOME Evince; the documented outcome is a process crash, while arbitrary code execution is reported as possible rather than demonstrated.

CVSS severity6.8
Medium
EPSS probability3.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in t1lib's AFM parser allows remote attackers to crash the process through a crafted DVI file. The token and linetoken functions in backend/dvi/mdvi-lib/afmparse.c make off-by-one writes while extracting tokens from embedded Adobe Font Metrics data. A user must process the attacker-supplied DVI content in a t1lib consumer such as teTeX 3.0.x or GNOME Evince; the documented outcome is a process crash, while arbitrary code execution is reported as possible rather than demonstrated.

The record

CVE
CVE-2011-5244
Published
Nov 19, 2012
Updated
Aug 7, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-189, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 19, 2012CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-189Numeric Errors
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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