CVE-2015-5544 Detail

CVE-2015-5544

CVE Descriptions

Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before 18.0.0.199, Adobe AIR SDK before 18.0.0.199, and Adobe AIR SDK & Compiler before 18.0.0.199 allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2015-5545, CVE-2015-5546, CVE-2015-5547, CVE-2015-5548, CVE-2015-5549, CVE-2015-5552, and CVE-2015-5553.

CVE Informations

Related Weaknesses

CWE-ID	Weakness Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	10		AV:N/AC:L/Au:N/C:C/I:C/A:C	[email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 37866

Publication date : 2015-08-18 22h00 +00:00
Author : Google Security Research
EDB Verified : Yes

Source: https://code.google.com/p/google-security-research/issues/detail?id=396&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id A nasty looking crash is manifesting in various different ways under fuzzing, apparently related to drawing and bitmap handling. A trigger is attached, signal_sigsegv_7ffff5b5aee2_252_0688bbd450e7c095265d00be2fca50ab.swf The base file from which this fuzz case was generated is attached, 0688bbd450e7c095265d00be2fca50ab.swf The crash on 64-bit Linux looks like this: => 0x00007f69314b8f7d: cmpl $0xc,0x174(%rax) rax 0x83071500ff0300 36881008741516032 If we trace through the usages of %rax, we can get to some bad writes pretty easily: => 0x00007f69314b8f7d: cmpl $0xc,0x174(%rax) 0x00007f69314b8f84: je 0x7f69314b8fa0 ... 0x00007f69314b8fa0: mov (%rax),%rdi <-- rdi compromised 0x00007f69314b8fa3: callq 0x7f69314b8810 ... 0x00007f69314b8810: mov (%rsi),%edx 0x00007f69314b8812: cmp $0x7ffffff,%edx 0x00007f69314b8818: je 0x7f69314b8862 0x00007f69314b881a: mov 0x10(%rdi),%eax 0x00007f69314b881d: cmp $0x7ffffff,%eax 0x00007f69314b8822: je 0x7f69314b8868 0x00007f69314b8824: sub $0x1,%edx 0x00007f69314b8827: cmp %eax,%edx 0x00007f69314b8829: cmovg %eax,%edx 0x00007f69314b882c: mov 0x14(%rdi),%eax 0x00007f69314b882f: mov %edx,0x10(%rdi) <---- rdi written to Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37866.zip