QEMU: slirp: invalid pointer initialization may lead to information disclosure (bootp)

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootpinput function and could occur while processing a udp packet that is smaller than the size of the 'bootpt' structure. A malicious guest could use this flaw to leak 10 byte...

USN-5009-2: libslirp vulnerabilities

USN-5009-1 fixed vulnerabilities in libslirp. This update provides the corresponding updates for Ubuntu 21.10. Original advisory details: Qiuhao Li discovered that libslirp incorrectly handled certain header data lengths. An attacker inside a guest could possibly use this issue to leak sensitive...

EulerOS 2.0 SP3 : nginx (EulerOS-SA-2021-2599)

According to the versions of the nginx package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - NGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a modification date in 1969 that cause...

EulerOS 2.0 SP2 : nginx (EulerOS-SA-2021-2412)

According to the versions of the nginx package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause...

EulerOS 2.0 SP5 : nginx (EulerOS-SA-2021-2340)

According to the version of the nginx packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byt...

openSUSE 15 Security Update : nginx (openSUSE-SU-2021:1815-1)

The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2021:1815-1 advisory. - A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause...

USN-5009-1: libslirp vulnerabilities

Qiuhao Li discovered that libslirp incorrectly handled certain header data lengths. An attacker inside a guest could possibly use this issue to leak sensitive information from the host. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. CVE-2020-29129, CVE-2020-29130 It was discovered th...

CVE-2021-26088

An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets...

[ASA-202106-49] libslirp: information disclosure

Arch Linux Security Advisory ASA-202106-49 ========================================== Severity: Medium Date : 2021-06-22 CVE-ID : CVE-2021-3592 CVE-2021-3593 CVE-2021-3594 CVE-2021-3595 Package : libslirp Type : information disclosure Remote : No Link : https://security.archlinux.org/AVG-2073...

QEMU Invalid Pointer Initialization Vulnerability (CNVD-2021-45769)

QEMU is a suite of analog processor software. A security vulnerability exists in QEMU that stems from the use of memory outside of the working mbuf buffer by the function udp6input when processing udp packets from incoming guests that are smaller than the size of the udphdr structure. An attacker...

CVE-2021-3592

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootpinput function and could occur while processing a udp packet that is smaller than the size of the 'bootpt' structure. A malicious guest could use this flaw to leak 10 byte...

QEMU 缓冲区错误漏洞

QEMU is a suite of analog processor software. A security vulnerability exists in QEMU that stems from the function udp6input using memory outside of the working mbuf buffer when processing udp packets from incoming guests that are smaller than the size of the udphdr structure. An attacker could...

Oracle Linux 8 : nginx:1.18 (ELSA-2021-2259)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-2259 advisory. 1.18.0-3.1.0.1 - Remove Red Hat references Orabug: 29498217 1:1.18.0-3.1 - Resolves: 1963178 - CVE-2021-23017 nginx:1.18/nginx: Off-by-one in ngxresolvercopy wh...

CVE-2021-23017

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact...

Memory corruption

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact...

CVE-2021-23017

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact...

CVE-2021-23017

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact...

CVE-2021-23017

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact...

CVE-2021-23017

CVE-2021-23017 affects nginx's resolver. A security issue arises from an off-by-one in ngx_resolver_copy when DNS labels are followed by a root-domain pointer, allowing a crafted UDP response to overwrite the least significant byte of the next heap chunk metadata. This can lead to a worker proces...

NGINX -- 1-byte memory overwrite in resolver

NGINX team reports: 1-byte memory overwrite might occur during DNS server response processing if the "resolver" directive was used, allowing an attacker who is able to forge UDP packets from the DNS server to cause worker process crash or, potentially, arbitrary code execution...