[CLSA-2026:1789572329] Fix CVE(s): CVE-2026-86138
Type:
security
Severity:
Critical
Release date:
2026-09-16 15:25:39 UTC
Description:
* SECURITY UPDATE: integer overflow leading to heap buffer overflow in xmlDictAddQString() - debian/patches/CVE-2026-86138.patch: add SIZE_MAX-based overflow guards to the pool size computation in xmlDictAddQString() in dict.c, plus a SIZE_MAX fallback define, so an oversized prefix and name can no longer wrap the allocation size and let the following memcpy() write past the dictionary string pool - CVE-2026-86138
CVEs fixed:
Updated packages:
  • libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_amd64.deb
    sha:cb229a34866374f017210bbdb6d572c7968c7da1
  • libxml2-dev_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_amd64.deb
    sha:9bc243315385034a616fe47185f10e215e51c545
  • libxml2-doc_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_all.deb
    sha:c02e98efe7a45c4b2bf6a7750ef78758d5bce0cb
  • libxml2-utils_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_amd64.deb
    sha:7a385af928d2a9c933be32a31d88ad2694d1b373
  • python-libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_amd64.deb
    sha:ae4061d60819fc4a81a7317a5f015635819b19ff
  • python3-libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_amd64.deb
    sha:131f4f646028c4366e97fe47c1f4d2b349bb4440
  • libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_arm64.deb
    sha:d35001d2e03ebb469991752123b9fc7f5a3eb2c8
  • libxml2-dev_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_arm64.deb
    sha:f562dff47964d7bc4ca8f34f65c829ad671ea769
  • libxml2-utils_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_arm64.deb
    sha:8c59c7edc0e301c9e7232b84ec1fbceeea934da9
  • python-libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_arm64.deb
    sha:26e31b5f580c449225c7350752153a91aa37429c
  • python3-libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_arm64.deb
    sha:adca26beac2b0508cfbbdb002e678943bcd09eb2
  • libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_armel.deb
    sha:e2a845934530588d93034d78c7f1525f0545d044
  • libxml2-dev_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_armel.deb
    sha:cab0db4959c94b0222a7162a6327e9f1a43a2a7e
  • libxml2-utils_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_armel.deb
    sha:bac195385232c6e25daba8531f9a6d2e4fac9059
  • python-libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_armel.deb
    sha:32ba07e998f3adc828bbf3fbe7f554b7ea16597a
  • python3-libxml2_2.9.10+dfsg-5ubuntu0.20.04.10+tuxcare.els14_armel.deb
    sha:975d475bc213ea2855b27a6cf775943feac18ba3
Notes:
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