Aggregator

USN-8613-1: FreeIPMI vulnerabilities

Ubuntu Security Advisories
1 week 4 days ago
Zhihan Zheng discovered that FreeIPMI had several buffer overflow vulnerabilities in ipmi-oem response message handling. A local attacker with control a malicious IPMI device or simulator could possibly cause FreeIPMI to crash, resulting in a denial of service. (CVE-2026-33554, CVE-2026-50031)

USN-8611-1: GNU C Library vulnerabilities

Ubuntu Security Advisories
1 week 4 days ago
It was discovered that the GNU C Library iconv function incorrectly handled certain IBM character sets. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-4046) It was discovered that the GNU C Library DNS functions incorrectly handled certain DNS server responses when using gethostbyaddr or gethostbyaddr_r. An attacker in a privileged network position could possibly use this issue to cause an application to violate DNS specification or obtain incorrect hostname information. This issue only affected Ubuntu 24.04 LTS. (CVE-2026-4437, CVE-2026-4438) It was discovered that the GNU C Library deprecated debugging functions incorrectly enforced caller-supplied buffer lengths. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-5435) It was discovered that the GNU C Library scanf family of functions contained a heap buffer overflow when processing certain format specifiers. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-5450) It was discovered that the GNU C Library ungetwc function incorrectly handled certain character encodings. An attacker could possibly use this issue to obtain sensitive information or cause a denial of service. (CVE-2026-5928) It was discovered that the GNU C Library deprecated debugging functions incorrectly validated DNS response record data. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. (CVE-2026-6238)

unbound-1.25.2-1.fc43

Fedora Security Advisories
1 week 4 days ago
FEDORA-2026-3170ee6a1c Packages in this update:
  • unbound-1.25.2-1.fc43
Update description:

Update to 1.25.2 (rhbz#2506061)

Security fixes:

  • Fix CVE-2026-14586, Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments. Thanks to Kunta Chu, Kaihua Wang, and Jianjun Chen from Tsinghua University, for the report.
  • Fix CVE-2026-32665, Remote DNS-over-QUIC denial of service due to quic-size budget bypass. Thanks to N0zoM1z0 (https://github.com/N0zoM1z0) for the report. In addition, thanks to Kunta Chu, Kaihua Wang, and Jianjun Chen from Tsinghua University, for also reporting this issue. In addition, thanks to Qifan Zhang, Palo Alto Networks, for also reporting this issue. In addition, thanks to Xuanchao Xie, for also reporting this issue.
  • Fix CVE-2026-40691, Packet of death for DNSCrypt over TCP. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Trung Nguyen (@everping) of CyStack, for also reporting this issue.
  • Fix CVE-2026-41637, Degradation of resolution service from improperly accounted client-terminated DNS-over-QUIC queries. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-42955, Extra fix for CVE-2026-40622 to also clamp the TTL of A/AAAA records disallowing a one-time 'ghost domain' delegation renewal via glue records. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-44621, Libunbound applications configured with 'unwanted-reply-threshold' could eventually be abruptly terminated. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-44687, Off-by-one error in 'harden-below-nxdomain' logic can shadow a stub/forward zone by a legitimate parent's NXDOMAIN. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-44690, Cross-zone wildcard cache poisoning via RRSIG.labels manipulation. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-46582, A wildcard replay, as another piece of data, triggers poisoning in the serve expired reply path. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50045, 'max-global-quota' reset by DNSSEC validation restarts. Thanks to Kunjie Shang, University of Science and Technology of China, for the report.
  • Fix CVE-2026-50046, Possible heap use-after-free in an error path when a DoT forwarded query is jostled out. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50243, 'response-ip'/'rpz' can rewrite BOGUS answers instead of returning SERVFAIL. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50248, BOGUS configured primary hostname accepted for XFR in auth/rpz zones. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50251, Attacker supplied 0.0.0.0/:: glue triggers defensive full-cache flush. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50252, Possible cache poisoning attack by mapping source port population per thread. Thanks to Inbal Schussheim and Amit Klein, Hebrew University, for the report.
  • Fix CVE-2026-52863, Memory corruption could lead to crash and denial of service. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-54478, DNS Cookie bypass when combined with proxy-protocol use. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55708, Privacy/configuration issue when adding local data in views through 'unbound-control'. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55717, 'serve-expired-client-timeout' and 'response-ip' CNAME redirect could lead to a crash. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Xin Wang, Jiapeng Li, and Jiajia Liu, Northwestern Polytechnical University, for also reporting this issue.
  • Fix CVE-2026-55973, 'dns-error-reporting: yes' leads to stack buffer overflow. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55990, Packet of death for a DNSCrypt misconfigured Unbound. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55991, Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Xuanchao Xie, for also reporting this issue.
  • Fix CVE-2026-56416, Possible heap buffer overflow when validator canonicalizes RDATA that contains domain name. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-56444, Degradation of resolution service when 'discard-timeout' and 'serve-expired-client-timeout' are combined in unusual configuration. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Xin Wang, Jiapeng Li, and Jiajia Liu, Northwestern Polytechnical University, for also reporting this issue. In addition, thanks to Haruki Oyama (Waseda University), for also reporting this issue.

Source: https://nlnetlabs.nl/projects/unbound/download/#unbound-1-25-2

unbound-1.25.2-1.fc44

Fedora Security Advisories
1 week 4 days ago
FEDORA-2026-e495bd59ef Packages in this update:
  • unbound-1.25.2-1.fc44
Update description:

Update to 1.25.2 (rhbz#2506061)

Security fixes:

  • Fix CVE-2026-14586, Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments. Thanks to Kunta Chu, Kaihua Wang, and Jianjun Chen from Tsinghua University, for the report.
  • Fix CVE-2026-32665, Remote DNS-over-QUIC denial of service due to quic-size budget bypass. Thanks to N0zoM1z0 (https://github.com/N0zoM1z0) for the report. In addition, thanks to Kunta Chu, Kaihua Wang, and Jianjun Chen from Tsinghua University, for also reporting this issue. In addition, thanks to Qifan Zhang, Palo Alto Networks, for also reporting this issue. In addition, thanks to Xuanchao Xie, for also reporting this issue.
  • Fix CVE-2026-40691, Packet of death for DNSCrypt over TCP. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Trung Nguyen (@everping) of CyStack, for also reporting this issue.
  • Fix CVE-2026-41637, Degradation of resolution service from improperly accounted client-terminated DNS-over-QUIC queries. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-42955, Extra fix for CVE-2026-40622 to also clamp the TTL of A/AAAA records disallowing a one-time 'ghost domain' delegation renewal via glue records. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-44621, Libunbound applications configured with 'unwanted-reply-threshold' could eventually be abruptly terminated. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-44687, Off-by-one error in 'harden-below-nxdomain' logic can shadow a stub/forward zone by a legitimate parent's NXDOMAIN. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-44690, Cross-zone wildcard cache poisoning via RRSIG.labels manipulation. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-46582, A wildcard replay, as another piece of data, triggers poisoning in the serve expired reply path. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50045, 'max-global-quota' reset by DNSSEC validation restarts. Thanks to Kunjie Shang, University of Science and Technology of China, for the report.
  • Fix CVE-2026-50046, Possible heap use-after-free in an error path when a DoT forwarded query is jostled out. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50243, 'response-ip'/'rpz' can rewrite BOGUS answers instead of returning SERVFAIL. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50248, BOGUS configured primary hostname accepted for XFR in auth/rpz zones. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50251, Attacker supplied 0.0.0.0/:: glue triggers defensive full-cache flush. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-50252, Possible cache poisoning attack by mapping source port population per thread. Thanks to Inbal Schussheim and Amit Klein, Hebrew University, for the report.
  • Fix CVE-2026-52863, Memory corruption could lead to crash and denial of service. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-54478, DNS Cookie bypass when combined with proxy-protocol use. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55708, Privacy/configuration issue when adding local data in views through 'unbound-control'. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55717, 'serve-expired-client-timeout' and 'response-ip' CNAME redirect could lead to a crash. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Xin Wang, Jiapeng Li, and Jiajia Liu, Northwestern Polytechnical University, for also reporting this issue.
  • Fix CVE-2026-55973, 'dns-error-reporting: yes' leads to stack buffer overflow. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55990, Packet of death for a DNSCrypt misconfigured Unbound. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-55991, Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Xuanchao Xie, for also reporting this issue.
  • Fix CVE-2026-56416, Possible heap buffer overflow when validator canonicalizes RDATA that contains domain name. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
  • Fix CVE-2026-56444, Degradation of resolution service when 'discard-timeout' and 'serve-expired-client-timeout' are combined in unusual configuration. Thanks to Qifan Zhang, Palo Alto Networks, for the report. In addition, thanks to Xin Wang, Jiapeng Li, and Jiajia Liu, Northwestern Polytechnical University, for also reporting this issue. In addition, thanks to Haruki Oyama (Waseda University), for also reporting this issue.

Source: https://nlnetlabs.nl/projects/unbound/download/#unbound-1-25-2

chromium-150.0.7871.186-1.fc43

Fedora Security Advisories
1 week 4 days ago
FEDORA-2026-8a09a7af63 Packages in this update:
  • chromium-150.0.7871.186-1.fc43
Update description:

Update to 150.0.7871.186

* CVE-2026-16807: Out of bounds write in Codecs * CVE-2026-16806: Use after free in WebMCP * CVE-2026-16805: Use after free in Blink * CVE-2026-16804: Use after free in Input

chromium-150.0.7871.186-1.el10_2

Fedora Security Advisories
1 week 4 days ago
FEDORA-EPEL-2026-a0f8efaf63 Packages in this update:
  • chromium-150.0.7871.186-1.el10_2
Update description:

Update to 150.0.7871.186

* CVE-2026-16807: Out of bounds write in Codecs * CVE-2026-16806: Use after free in WebMCP * CVE-2026-16805: Use after free in Blink * CVE-2026-16804: Use after free in Input

chromium-150.0.7871.186-1.el9

Fedora Security Advisories
1 week 4 days ago
FEDORA-EPEL-2026-78d19b7e32 Packages in this update:
  • chromium-150.0.7871.186-1.el9
Update description:

Update to 150.0.7871.186

* CVE-2026-16807: Out of bounds write in Codecs * CVE-2026-16806: Use after free in WebMCP * CVE-2026-16805: Use after free in Blink * CVE-2026-16804: Use after free in Input

chromium-150.0.7871.186-1.el10_3

Fedora Security Advisories
1 week 4 days ago
FEDORA-EPEL-2026-20a659f606 Packages in this update:
  • chromium-150.0.7871.186-1.el10_3
Update description:

Update to 150.0.7871.186

* CVE-2026-16807: Out of bounds write in Codecs * CVE-2026-16806: Use after free in WebMCP * CVE-2026-16805: Use after free in Blink * CVE-2026-16804: Use after free in Input

chromium-150.0.7871.186-1.fc44

Fedora Security Advisories
1 week 4 days ago
FEDORA-2026-e48156418f Packages in this update:
  • chromium-150.0.7871.186-1.fc44
Update description:

Update to 150.0.7871.186

* CVE-2026-16807: Out of bounds write in Codecs * CVE-2026-16806: Use after free in WebMCP * CVE-2026-16805: Use after free in Blink * CVE-2026-16804: Use after free in Input