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Fencer Vulns
high 7.8

CVE-2008-3196 json

skeleton.c in yacc does not properly handle reduction of a rule with an empty right hand side, which allows context-dependent attackers to…

published 2008-07-16 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3186

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

skeleton.c in yacc does not properly handle reduction of a rule with an empty right hand side, which allows context-dependent attackers to cause an out-of-bounds stack access when the yacc stack pointer points to the end of the stack.

Patch / fix

  • byacc Debian 14, Debian 13, Debian 12 20070509-1.1

debian advisories DEBIAN-CVE-2008-3196

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-3196 updated

byacc: Potential out of bounds of allocated stack access

  • Red Hat Enterprise Linux 4 byacc Red Hat Enterprise Linux 5 byacc
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.