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CVE-2026-0719

Libsoup: signed to unsigned conversion error leading to stack-based buffer overflow in libsoup ntlm authentication PUBLISHED

Description (CNA)

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:3.6.5-3.el10_1.9 before *
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:3.6.5-3.el10_0.14 before *
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:2.62.2-11.el7_9 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:8.10-7 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:2.62.3-13.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:2.62.3-13.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:2.62.3-1.el8_2.8 before *
Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:8.10-7.el8_2.1 before *
Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:2.62.3-2.el8_4.8 before *
Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:8.10-7.el8_4.1 before *
Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:2.62.3-2.el8_4.8 before *
Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:8.10-7.el8_4.1 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:2.62.3-2.el8_6.8 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:8.10-7.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:2.62.3-2.el8_6.8 before *
Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:8.10-7.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:2.62.3-2.el8_6.8 before *
Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:8.10-7.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:2.62.3-3.el8_8.8 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:8.10-7.el8_8.1 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:2.62.3-3.el8_8.8 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:8.10-7.el8_8.1 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:2.72.0-12.el9_7.5 before *
Red Hat / Red Hat Enterprise Linux 9.0 Update Services for SAP Solutionsunaffected 0:2.72.0-8.el9_0.9 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:2.72.0-8.el9_2.10 before *
Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Supportunaffected 0:2.72.0-8.el9_4.9 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:2.72.0-10.el9_6.6 before *
Red Hat / Red Hat OpenShift Dev Spaces (RHOSDS) 3.26unaffected sha256:619c10386e0224e5228876a434c5b8d78d251bc383e2a9491503d6ceddd33c96 before *
Red Hat / Red Hat OpenShift Dev Spaces (RHOSDS) 3.26unaffected sha256:48d31aa446fe1033ad770ed74442053bcee5102035a9c618fb81cde1743a9692 before *
Red Hat / Red Hat OpenShift Dev Spaces (RHOSDS) 3.26unaffected sha256:bb9f0ee4fa785a4c3d4a3f6f5e177f4a41350ccef40bc53bfeedee2d52061472 before *
Red Hat / Red Hat Enterprise Linux 6unknown

CWE

CWE-121

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.