An update for ppp is now available for openEuler-24.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-4117 Final 1.0 1.0 2026-09-25 Initial 2026-09-25 2026-09-25 openEuler SA Tool V1.0 2026-09-25 ppp security update An update for ppp is now available for openEuler-24.03-LTS-SP4 The Point-to-Point Protocol (PPP) provides a standard way to establish a network connection over a serial link. At present, this package supports IP and IPV6 and the protocols layered above them, such as TCP and UDP. The Linux port of this package also has support for IPX. Security Fix(es): The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket_buf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to a server which requests PEAP authentication can be induced to corrupt global static data following the outpacket_buf array, most likely causing incorrect behavior or a crash.(CVE-2026-75883) An update for ppp is now available for openEuler-24.03-LTS-SP4. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium ppp https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4117 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-75883 https://nvd.nist.gov/vuln/detail/CVE-2026-75883 openEuler-24.03-LTS-SP4 ppp-2.5.0-6.oe2403sp4.aarch64.rpm ppp-debuginfo-2.5.0-6.oe2403sp4.aarch64.rpm ppp-debugsource-2.5.0-6.oe2403sp4.aarch64.rpm ppp-devel-2.5.0-6.oe2403sp4.aarch64.rpm ppp-2.5.0-6.oe2403sp4.src.rpm ppp-2.5.0-6.oe2403sp4.x86_64.rpm ppp-debuginfo-2.5.0-6.oe2403sp4.x86_64.rpm ppp-debugsource-2.5.0-6.oe2403sp4.x86_64.rpm ppp-devel-2.5.0-6.oe2403sp4.x86_64.rpm ppp-help-2.5.0-6.oe2403sp4.noarch.rpm The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket_buf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to a server which requests PEAP authentication can be induced to corrupt global static data following the outpacket_buf array, most likely causing incorrect behavior or a crash. 2026-09-25 CVE-2026-75883 openEuler-24.03-LTS-SP4 Medium 6.8 AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N ppp security update 2026-09-25 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4117