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Commit0150ab5

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to_char(): prevent accesses beyond the allocated buffer
Previously very long field masks for floats could access memorybeyond the existing buffer allocated to hold the result.Reported by Andres Freund and Peter Geoghegan.Backpatch to allsupported versions.Security:CVE-2015-0241
1 parentf9ee8ea commit0150ab5

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‎src/backend/utils/adt/formatting.c

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -4428,7 +4428,9 @@ NUM_numpart_to_char(NUMProc *Np, int id)
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Np->num_in= TRUE;
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}
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}
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++Np->number_p;
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/* do no exceed string length */
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if (*Np->number_p)
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++Np->number_p;
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}
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end=Np->num_count+ (Np->out_pre_spaces ?1 :0)+ (IS_DECIMAL(Np->Num) ?1 :0);

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