CVE-2015-7895 : Détail

CVE-2015-7895

5.5
/
Moyen
A01-Broken Access Control
0.07%V3
Local
2017-06-27
18h00 +00:00
2017-06-27
17h57 +00:00
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Descriptions du CVE

Samsung Gallery on the Samsung Galaxy S6 allows local users to cause a denial of service (process crash).

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-284 Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V3.0 5.5 MEDIUM CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Local

A vulnerability exploitable with Local access means that the vulnerable component is not bound to the network stack, and the attacker's path is via read/write/execute capabilities. In some cases, the attacker may be logged in locally in order to exploit the vulnerability, otherwise, she may rely on User Interaction to execute a malicious file.

Attack Complexity

This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

Low

The attacker is authorized with (i.e. requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.

User Interaction

This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Unchanged

An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same.

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

None

There is no loss of confidentiality within the impacted component.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

None

There is no loss of integrity within the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability.

Environmental Metrics

nvd@nist.gov
V2 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

Informations sur l'Exploit

Exploit Database EDB-ID : 38613

Date de publication : 2015-11-02 23h00 +00:00
Auteur : Google Security Research
EDB Vérifié : Yes

Source: https://code.google.com/p/google-security-research/issues/detail?id=497 Loading the bitmap bmp_memset.bmp can cause a crash due to a memset writing out of bounds. I/DEBUG ( 2961): pid: 12383, tid: 12549, name: thread-pool-1 >>> com.sec.android.gallery3d <<< I/DEBUG ( 2961): signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x89e84000 I/DEBUG ( 2961): x0 0000000089e8117c x1 00000000000000ff x2 00000000177fe13c x3 0000000089e8117c I/DEBUG ( 2961): x4 0000000000000004 x5 0000007f65f42300 x6 0000000000000002 x7 ffffffffffffffff I/DEBUG ( 2961): x8 0000000089e83ff0 x9 0000007f65f020b0 x10 000000000000003c x11 000000000000003b I/DEBUG ( 2961): x12 0000007f65f02080 x13 00000000ffffffff x14 0000007f65f02080 x15 00000000000061e0 I/DEBUG ( 2961): x16 0000007f6baccc10 x17 0000007f958f8d80 x18 0000007f9596da40 x19 0000007f65f0e180 I/DEBUG ( 2961): x20 0000007f65f54020 x21 00000000002f0020 x22 0000000000000020 x23 0000000005e00400 I/DEBUG ( 2961): x24 0000000000000004 x25 0000007f65f42300 x26 0000000000000020 x27 0000007f65f52080 I/DEBUG ( 2961): x28 00000000000001da x29 0000000013071460 x30 0000007f6ba7e40c I/DEBUG ( 2961): sp 0000007f66796130 pc 0000007f958f8e28 pstate 0000000020000000 I/DEBUG ( 2961): I/DEBUG ( 2961): backtrace: I/InjectionManager(12532): Inside getClassLibPath caller I/DEBUG ( 2961): #00 pc 0000000000019e28 /system/lib64/libc.so (memset+168) I/DEBUG ( 2961): #01 pc 0000000000030408 /system/lib64/libSecMMCodec.so (sbmpd_decode_rle_complete+64) I/DEBUG ( 2961): #02 pc 0000000000033440 /system/lib64/libSecMMCodec.so (DecodeFile+120) I/DEBUG ( 2961): #03 pc 000000000000c90c /system/lib64/libSecMMCodec.so (Java_com_sec_samsung_gallery_decoder_SecMMCodecInterface_nativeDecode+436) I/DEBUG ( 2961): #04 pc 000000000042ec00 /system/priv-app/SecGallery2015/arm64/SecGallery2015.odex To reproduce, download the file and open it in Gallery. This issue was tested on a SM-G925V device running build number LRX22G.G925VVRU1AOE2. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/38613.zip

Products Mentioned

Configuraton 0

Samsung>>Samsung_mobile >> Version *

Samsung>>Galaxy_s6 >> Version -

Références

https://www.exploit-db.com/exploits/38613/
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securityfocus.com/bid/77429
Tags : vdb-entry, x_refsource_BID