CVE-2011-0433Network attack vector

Crash or code execution via AFM line overflow

Published Nov 19, 2012 · Updated Aug 6, 2024

Heap buffer overflow in t1lib's AFM parser allows remote attackers to crash or execute code through a crafted DVI file. The linetoken function in afmparse.c copies an overlong AFM line into the fixed-size ident heap buffer without enforcing its MAX_NAME bound. Exploitation requires a user to open or process the file in Evince, teTeX, or another application linked against t1lib; code runs with that user's privileges.

CVSS severity6.8
Medium
EPSS probability4.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in t1lib's AFM parser allows remote attackers to crash or execute code through a crafted DVI file. The linetoken function in afmparse.c copies an overlong AFM line into the fixed-size ident heap buffer without enforcing its MAX_NAME bound. Exploitation requires a user to open or process the file in Evince, teTeX, or another application linked against t1lib; code runs with that user's privileges.

The record

CVE
CVE-2011-0433
Published
Nov 19, 2012
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 19, 2012CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File

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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