{"id":"OESA-2026-3055","summary":"libXfont2 security update","details":"libXfont provides the core of the legacy X11 font system, handling the index files (fonts.dir, fonts.alias, fonts.scale), the various font file formats, and rasterizing them.  contains runtime  library.\r\n\r\nSecurity Fix(es):\n\nA heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server context.(CVE-2026-56001)\n\nA heap buffer overflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8 allows attackers authenticated as X client to execute code within the X server.(CVE-2026-56002)\n\nA heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.(CVE-2026-56003)","modified":"2026-07-19T04:00:23.550295162Z","published":"2026-07-19T03:49:15Z","upstream":["CVE-2026-56001","CVE-2026-56002","CVE-2026-56003"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3055"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56001"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56002"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56003"}],"affected":[{"package":{"name":"libXfont2","ecosystem":"openEuler:22.03-LTS-SP4","purl":"pkg:rpm/openEuler/libXfont2&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.5-5.oe2203sp4"}]}],"ecosystem_specific":{"x86_64":["libXfont2-2.0.5-5.oe2203sp4.x86_64.rpm","libXfont2-debuginfo-2.0.5-5.oe2203sp4.x86_64.rpm","libXfont2-debugsource-2.0.5-5.oe2203sp4.x86_64.rpm","libXfont2-devel-2.0.5-5.oe2203sp4.x86_64.rpm"],"aarch64":["libXfont2-2.0.5-5.oe2203sp4.aarch64.rpm","libXfont2-debuginfo-2.0.5-5.oe2203sp4.aarch64.rpm","libXfont2-debugsource-2.0.5-5.oe2203sp4.aarch64.rpm","libXfont2-devel-2.0.5-5.oe2203sp4.aarch64.rpm"],"noarch":["libXfont2-help-2.0.5-5.oe2203sp4.noarch.rpm"],"src":["libXfont2-2.0.5-5.oe2203sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3055.json"}},{"package":{"name":"libXfont2","ecosystem":"openEuler:24.03-LTS-SP1","purl":"pkg:rpm/openEuler/libXfont2&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.6-3.oe2403sp1"}]}],"ecosystem_specific":{"x86_64":["libXfont2-2.0.6-3.oe2403sp1.x86_64.rpm","libXfont2-debuginfo-2.0.6-3.oe2403sp1.x86_64.rpm","libXfont2-debugsource-2.0.6-3.oe2403sp1.x86_64.rpm","libXfont2-devel-2.0.6-3.oe2403sp1.x86_64.rpm"],"aarch64":["libXfont2-2.0.6-3.oe2403sp1.aarch64.rpm","libXfont2-debuginfo-2.0.6-3.oe2403sp1.aarch64.rpm","libXfont2-debugsource-2.0.6-3.oe2403sp1.aarch64.rpm","libXfont2-devel-2.0.6-3.oe2403sp1.aarch64.rpm"],"noarch":["libXfont2-help-2.0.6-3.oe2403sp1.noarch.rpm"],"src":["libXfont2-2.0.6-3.oe2403sp1.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3055.json"}},{"package":{"name":"libXfont2","ecosystem":"openEuler:24.03-LTS-SP3","purl":"pkg:rpm/openEuler/libXfont2&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.6-3.oe2403sp3"}]}],"ecosystem_specific":{"noarch":["libXfont2-help-2.0.6-3.oe2403sp3.noarch.rpm"],"src":["libXfont2-2.0.6-3.oe2403sp3.src.rpm"],"x86_64":["libXfont2-2.0.6-3.oe2403sp3.x86_64.rpm","libXfont2-debuginfo-2.0.6-3.oe2403sp3.x86_64.rpm","libXfont2-debugsource-2.0.6-3.oe2403sp3.x86_64.rpm","libXfont2-devel-2.0.6-3.oe2403sp3.x86_64.rpm"],"aarch64":["libXfont2-2.0.6-3.oe2403sp3.aarch64.rpm","libXfont2-debuginfo-2.0.6-3.oe2403sp3.aarch64.rpm","libXfont2-debugsource-2.0.6-3.oe2403sp3.aarch64.rpm","libXfont2-devel-2.0.6-3.oe2403sp3.aarch64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3055.json"}},{"package":{"name":"libXfont2","ecosystem":"openEuler:24.03-LTS-SP4","purl":"pkg:rpm/openEuler/libXfont2&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.6-3.oe2403sp4"}]}],"ecosystem_specific":{"src":["libXfont2-2.0.6-3.oe2403sp4.src.rpm"],"x86_64":["libXfont2-2.0.6-3.oe2403sp4.x86_64.rpm","libXfont2-debuginfo-2.0.6-3.oe2403sp4.x86_64.rpm","libXfont2-debugsource-2.0.6-3.oe2403sp4.x86_64.rpm","libXfont2-devel-2.0.6-3.oe2403sp4.x86_64.rpm"],"aarch64":["libXfont2-2.0.6-3.oe2403sp4.aarch64.rpm","libXfont2-debuginfo-2.0.6-3.oe2403sp4.aarch64.rpm","libXfont2-debugsource-2.0.6-3.oe2403sp4.aarch64.rpm","libXfont2-devel-2.0.6-3.oe2403sp4.aarch64.rpm"],"noarch":["libXfont2-help-2.0.6-3.oe2403sp4.noarch.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3055.json"}},{"package":{"name":"libXfont2","ecosystem":"openEuler:20.03-LTS-SP4","purl":"pkg:rpm/openEuler/libXfont2&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.4-2.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["libXfont2-2.0.4-2.oe2003sp4.aarch64.rpm","libXfont2-debuginfo-2.0.4-2.oe2003sp4.aarch64.rpm","libXfont2-debugsource-2.0.4-2.oe2003sp4.aarch64.rpm","libXfont2-devel-2.0.4-2.oe2003sp4.aarch64.rpm"],"noarch":["libXfont2-help-2.0.4-2.oe2003sp4.noarch.rpm"],"src":["libXfont2-2.0.4-2.oe2003sp4.src.rpm"],"x86_64":["libXfont2-2.0.4-2.oe2003sp4.x86_64.rpm","libXfont2-debuginfo-2.0.4-2.oe2003sp4.x86_64.rpm","libXfont2-debugsource-2.0.4-2.oe2003sp4.x86_64.rpm","libXfont2-devel-2.0.4-2.oe2003sp4.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3055.json"}}],"schema_version":"1.7.5"}