Out-of-bounds Write Affecting libstb package, versions *


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.06% (29th percentile)

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  • Snyk ID SNYK-DEBIAN12-LIBSTB-6023949
  • published 22 Oct 2023
  • disclosed 21 Oct 2023

How to fix?

There is no fixed version for Debian:12 libstb.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libstb package and not the libstb package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of bounds write in f->vendor[len] = (char)'\0';. The root cause is that if len read in start_decoder is a negative number and setup_malloc successfully allocates memory in that case, but memory write is done with a negative index len. Similarly if len is INT_MAX the integer overflow len+1 happens in f->vendor = (char*)setup_malloc(f, sizeof(char) * (len+1)); and f->comment_list[i] = (char*)setup_malloc(f, sizeof(char) * (len+1));. This issue may lead to code execution.

CVSS Scores

version 3.1
Expand this section

NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High