5.5
MEDIUM
CVE-2019-7309
GNU glibc memcmp Vulnerability (Integer Overflow)
Description

In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.

INFO

Published Date :

Feb. 3, 2019, 2:29 a.m.

Last Modified :

Aug. 24, 2020, 5:37 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2019-7309 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 Gnu glibc
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-2019-7309.

URL Resource
http://www.securityfocus.com/bid/106835 Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/202006-04
https://sourceware.org/bugzilla/show_bug.cgi?id=24155 Issue Tracking Exploit Third Party Advisory
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html Mailing List 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).

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

The following list is the news that have been mention CVE-2019-7309 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-7309 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
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-119 NVD-CWE-noinfo
  • CVE Modified by [email protected]

    Jun. 13, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202006-04 [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 27, 2019

    Action Type Old Value New Value
    Changed Reference Type http://www.securityfocus.com/bid/106835 No Types Assigned http://www.securityfocus.com/bid/106835 Third Party Advisory, VDB Entry
    Changed CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (including) 2.29 OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:x86:* versions up to (including) 2.29
  • CVE Modified by [email protected]

    Feb. 06, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/106835 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 05, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=24155 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=24155 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html No Types Assigned https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html Mailing List, Third Party Advisory
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (including) 2.29
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-7309 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-7309 weaknesses.

Exploit Prediction

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

0.08 }} 0.02%

score

0.35323

percentile

CVSS30 - Vulnerability Scoring System
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Attack Complexity
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