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Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
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June 2, 2023
Severity High Analysis Summary Shuckworm APT – aka Actinium, Armageddon, Primitive Bear, Gamaredon, and Trident Ursa – is a Russia-backed advanced persistent threat (APT) that has […]June 2, 2023Severity High Analysis Summary StormKitty information stealer is designed to compromise sensitive data from infected systems, such as login credentials, passwords, cryptocurrency wallets, and other valuable […]June 2, 2023Severity High Analysis Summary Tofsee malware has been around since 2016. Once installed on a compromised computer, it can be used to send spam emails and […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
June 2, 2023Severity High Analysis Summary Shuckworm APT – aka Actinium, Armageddon, Primitive Bear, Gamaredon, and Trident Ursa – is a Russia-backed advanced persistent threat (APT) that has […]June 2, 2023Severity High Analysis Summary StormKitty information stealer is designed to compromise sensitive data from infected systems, such as login credentials, passwords, cryptocurrency wallets, and other valuable […]June 2, 2023Severity High Analysis Summary Tofsee malware has been around since 2016. Once installed on a compromised computer, it can be used to send spam emails and […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – Agent Tesla Email Campaign Stealing Information
June 17, 2019Rewterz Threat Advisory – CVE-2019-1040 – Windows NTLM Tampering Vulnerability
June 18, 2019
Severity
Medium
Analysis Summary
1) An integer overflow error related to the “tcp_shifted_skb()” function (net/ipv4/tcp_input.c) when handling TCP Selective Acknowledgement (SACK) segments with minimum TCP MSS values can be exploited to cause a crash via specially crafted SACKs.
2) An error related to the “tcp_fragment()” function (net/ipv4/tcp_output.c) can be exploited to exhaust available memory resources via specially crafted SACKs.
3) An error related to the “tcp_mtu_probing()” function (net/ipv4/tcp_timer.c) when handling minimum TCP MSS values can be exploited to cause a DoS condition.
CVE-2019-11479
CVE-2019-11478
CVE-2019-11477
Impact
Denial of Service
Affected Vendors
Linux
Affected Products
- Linux Kernel 3.16.x
- Linux Kernel 4.4.x
- Linux Kernel 4.9.x
- Linux Kernel 4.14.x
- Linux Kernel 4.19.x
- Linux Kernel 5.1.x
Remediation
Update to a fixed version if available.
Versions 5.1.x:
Update to version 5.1.11.
Versions 4.19.x:
Update to version 4.19.52.
Versions 4.14.x:
Update to version 4.14.127.
Versions 4.9.x:
Update to version 4.9.182.
Versions 4.4.x:
Update to version 4.4.182.
Versions 3.16.x:
No official solution is currently available.