9.8
CRITICAL
CVE-2017-7476
Gnulib TZ Environment Variable Heap-Based Buffer Overflow
Description

Gnulib before 2017-04-26 has a heap-based buffer overflow with the TZ environment variable. The error is in the save_abbr function in time_rz.c.

INFO

Published Date :

May 2, 2017, 5:59 p.m.

Last Modified :

Nov. 21, 2024, 3:31 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2017-7476 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2017-7476 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnulib gnulib
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-7476.

URL Resource
http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4
http://www.securityfocus.com/bid/98098 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1444774 Exploit Issue Tracking Mitigation Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1445185 Issue Tracking Patch Third Party Advisory VDB Entry
https://security-tracker.debian.org/tracker/CVE-2017-7476 Third Party Advisory
http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4
http://www.securityfocus.com/bid/98098 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1444774 Exploit Issue Tracking Mitigation Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1445185 Issue Tracking Patch Third Party Advisory VDB Entry
https://security-tracker.debian.org/tracker/CVE-2017-7476 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

A collection of vulnerabilities discovered by the AFL fuzzer (afl-fuzz)

Updated: 5 months, 3 weeks ago
88 stars 16 fork 16 watcher
Born at : Aug. 27, 2015, 12:26 a.m. This repo has been linked 332 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-7476 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-7476 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Removed Reference http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commit;h=94e01571507835ff59dd8ce2a0b56a4b566965a4 [Patch, Third Party Advisory]
    Added Reference http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4 [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 15, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1445185 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1445185 Issue Tracking, Patch, Third Party Advisory, VDB Entry
    Changed Reference Type https://security-tracker.debian.org/tracker/CVE-2017-7476 No Types Assigned https://security-tracker.debian.org/tracker/CVE-2017-7476 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1444774 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1444774 Exploit, Issue Tracking, Mitigation, Third Party Advisory, VDB Entry
    Changed Reference Type http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commit;h=94e01571507835ff59dd8ce2a0b56a4b566965a4 No Types Assigned http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commit;h=94e01571507835ff59dd8ce2a0b56a4b566965a4 Patch, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/98098 No Types Assigned http://www.securityfocus.com/bid/98098 Third Party Advisory, VDB Entry
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:a:gnulib:gnulib:2017-04-25:*:*:*:*:*:*:* (and previous)
  • CVE Modified by [email protected]

    May. 04, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/98098 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.86 }} 0.30%

score

0.79830

percentile

CVSS30 - Vulnerability Scoring System
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