VDB-130407 · CVE-2019-7309 · BID 106835

GNU C Library up to 2.29 RDX memcmp memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in GNU C Library up to 2.29. This affects the function memcmp of the component RDX Handler. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2019-7309. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in GNU C Library up to 2.29 (Software Library). It has been classified as critical. This affects the function memcmp of the component RDX Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. The summary by CVE is:

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.

The bug was discovered 02/04/2019. The weakness was disclosed 02/03/2019 (Website). It is possible to read the advisory at sourceware.org. This vulnerability is uniquely identified as CVE-2019-7309 since 02/02/2019. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

02/02/2019 🔍
02/02/2019 +0 days 🔍
02/03/2019 +1 days 🔍
02/03/2019 +0 days 🔍
02/04/2019 +1 days 🔍
07/04/2023 +1611 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: sourceware.org
Status: Not defined

CVE: CVE-2019-7309 (🔍)
GCVE (CVE): GCVE-0-2019-7309
GCVE (VulDB): GCVE-100-130407
SecurityFocus: 106835

Entryinfo

Created: 02/03/2019 09:54
Updated: 07/04/2023 11:39
Changes: 02/03/2019 09:54 (57), 05/07/2020 12:48 (1), 07/04/2023 11:39 (3)
Complete: 🔍
Cache ID: 216::103

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