Adobe Flash Player Integer Overflow
CVE-2015-8651 is a high-severity integer overflow or wraparound vulnerability in Air SDK from Adobe, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version 20.0.0.233 as the first without the flaw, so updating Air SDK to that release or later removes the exposure. CISA added it to the Known Exploited Vulnerabilities catalogue on May 25, 2022, which means attacks have been observed in the wild.
Attackers are already exploiting this vulnerability, according to CISA.
What to do
- Update Air SDK to 20.0.0.233 or a later version.
- Update Air SDK & Compiler to 20.0.0.233 or a later version.
- Update Flash Player to 11.2.202.559 or 18.0.0.324 or 20.0.0.267, whichever matches your release line, or a later version.
- CISA's required action: The impacted product is end-of-life and should be disconnected if still in use.
- Read the advisory on helpx.adobe.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Adobe | Air SDK | before 20.0.0.233 | 20.0.0.233 |
| Adobe | Air SDK & Compiler | before 20.0.0.233 | 20.0.0.233 |
| Adobe | Flash Player | before 11.2.202.559; before 18.0.0.324; 19.0.0.185 up to, but not including, 20.0.0.267 | 11.2.202.559, 18.0.0.324, 20.0.0.267 |
| Adobe | Air | before 20.0.0.233 | 20.0.0.233 |
| Red Hat | Enterprise Linux Desktop | 5.0; 6.0 | Not stated |
| Red Hat | Enterprise Linux Server | 5.0; 6.0 | Not stated |
| Red Hat | Enterprise Linux Workstation | 5.0; 6.0 | Not stated |
| openSUSE | Evergreen | 11.4 | Not stated |
| openSUSE | Opensuse | 13.1; 13.2 | Not stated |
| SUSE | Linux Enterprise Desktop | 11; 12 | Not stated |
| SUSE | Linux Enterprise Workstation Extension | 12 | Not stated |
| HP | Insight Control | before 7.6 | 7.6 |
| HP | Insight Control Server Provisioning | before 7.6 | 7.6 |
| HP | Matrix Operating Environment | 7.6 | Not stated |
| HP | System Management Homepage | before 7.6 | 7.6 |
| HP | Systems Insight Manager | before 7.6 | 7.6 |
| HP | Version Control Repository Manager | before 7.6 | 7.6 |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.1 | 8.8 | High | CISA (ADP) |
| CVSS 2.0 | 9.3 | High | NVD |
Official description
Integer overflow in Adobe Flash Player before 18.0.0.324 and 19.x and 20.x before 20.0.0.267 on Windows and OS X and before 11.2.202.559 on Linux, Adobe AIR before 20.0.0.233, Adobe AIR SDK before 20.0.0.233, and Adobe AIR SDK & Compiler before 20.0.0.233 allows attackers to execute arbitrary code via unspecified vectors.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
How developers prevent this class of flaw
- Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. If possible, choose a language or compiler that performs automatic bounds checking.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Use libraries or frameworks that make it easier to handle numbers without unexpected consequences. Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++).
More Integer Overflow or Wraparound vulnerabilities (CWE-190)
Timeline
- CVE record published.
- Added to CISA's Known Exploited Vulnerabilities catalogue.
- Deadline for US federal agencies to remediate, set by CISA.
- CISA published its SSVC assessment (exploitation: active, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Third-party and government advisories
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00045.htmlMailing List, Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00046.htmlMailing List, Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00047.htmlMailing List, Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00048.htmlMailing List, Third Party Advisory
- rhn.redhat.com/errata/RHSA-2015-2697.htmlThird Party Advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388Third Party Advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680Third Party Advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory
- security.gentoo.org/glsa/201601-03Third Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-8651US Government Resource
Other vulnerabilities in Air SDK
- 9.8 Critical severity
- 8.8 High severity
- 8.8 High severity
- 10.0 High severity
Adobe Flash Player Dereferenced Pointer Exploited
- 8.8 High severity
Recent Integer Overflow or Wraparound vulnerabilities
- 9.8 Critical severity
- 7.8 High severity
Linux Kernel Integer Overflow Exploited
- 8.8 High severity
Adobe Flash Player Integer Overflow Exploited
- 7.8 High severity
Android OS Privilege Escalation Exploited
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