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| From: | John Helmert III <ajak@g.o> |
|---|---|
| To: | gentoo-announce@l.g.o |
| Subject: | [gentoo-announce] [ GLSA 202107-05 ] libxml2: Multiple vulnerabilities |
| Date: | Tue, 06 Jul 2021 08:29:36 |
| Message-Id: | YOPL5MngUmIIfGeY@sol.nexus.lan |
| 1 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 | Gentoo Linux Security Advisory GLSA 202107-05 |
| 3 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 | https://security.gentoo.org/ |
| 5 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 | |
| 7 | Severity: Low |
| 8 | Title: libxml2: Multiple vulnerabilities |
| 9 | Date: July 06, 2021 |
| 10 | Bugs: #749849, #790002 |
| 11 | ID: 202107-05 |
| 12 | |
| 13 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 | |
| 15 | Synopsis |
| 16 | ======== |
| 17 | |
| 18 | Multiple vulnerabilities have been found in libxml2, the worst of which |
| 19 | could result in a Denial of Service condition. |
| 20 | |
| 21 | Background |
| 22 | ========== |
| 23 | |
| 24 | libxml2 is the XML (eXtended Markup Language) C parser and toolkit |
| 25 | initially developed for the GNOME project. |
| 26 | |
| 27 | Affected packages |
| 28 | ================= |
| 29 | |
| 30 | ------------------------------------------------------------------- |
| 31 | Package / Vulnerable / Unaffected |
| 32 | ------------------------------------------------------------------- |
| 33 | 1 dev-libs/libxml2 < 2.9.11 >= 2.9.11 |
| 34 | |
| 35 | Description |
| 36 | =========== |
| 37 | |
| 38 | Multiple vulnerabilities have been discovered in libxml2. Please review |
| 39 | the CVE identifiers referenced below for details. |
| 40 | |
| 41 | Impact |
| 42 | ====== |
| 43 | |
| 44 | A remote attacker could entice a user to process a specially crafted |
| 45 | XML document using an application linked against libxml2, possibly |
| 46 | resulting in a Denial of Service condition or obtaining sensitive |
| 47 | information. |
| 48 | |
| 49 | Workaround |
| 50 | ========== |
| 51 | |
| 52 | There is no known workaround at this time. |
| 53 | |
| 54 | Resolution |
| 55 | ========== |
| 56 | |
| 57 | All libxml2 users should upgrade to the latest version: |
| 58 | |
| 59 | # emerge --sync |
| 60 | # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.12-r3" |
| 61 | |
| 62 | References |
| 63 | ========== |
| 64 | |
| 65 | [ 1 ] CVE-2020-24977 |
| 66 | https://nvd.nist.gov/vuln/detail/CVE-2020-24977 |
| 67 | [ 2 ] CVE-2021-3516 |
| 68 | https://nvd.nist.gov/vuln/detail/CVE-2021-3516 |
| 69 | [ 3 ] CVE-2021-3517 |
| 70 | https://nvd.nist.gov/vuln/detail/CVE-2021-3517 |
| 71 | [ 4 ] CVE-2021-3518 |
| 72 | https://nvd.nist.gov/vuln/detail/CVE-2021-3518 |
| 73 | [ 5 ] CVE-2021-3537 |
| 74 | https://nvd.nist.gov/vuln/detail/CVE-2021-3537 |
| 75 | [ 6 ] CVE-2021-3541 |
| 76 | https://nvd.nist.gov/vuln/detail/CVE-2021-3541 |
| 77 | |
| 78 | Availability |
| 79 | ============ |
| 80 | |
| 81 | This GLSA and any updates to it are available for viewing at |
| 82 | the Gentoo Security Website: |
| 83 | |
| 84 | https://security.gentoo.org/glsa/202107-05 |
| 85 | |
| 86 | Concerns? |
| 87 | ========= |
| 88 | |
| 89 | Security is a primary focus of Gentoo Linux and ensuring the |
| 90 | confidentiality and security of our users' machines is of utmost |
| 91 | importance to us. Any security concerns should be addressed to |
| 92 | security@g.o or alternatively, you may file a bug at |
| 93 | https://bugs.gentoo.org. |
| 94 | |
| 95 | License |
| 96 | ======= |
| 97 | |
| 98 | Copyright 2021 Gentoo Foundation, Inc; referenced text |
| 99 | belongs to its owner(s). |
| 100 | |
| 101 | The contents of this document are licensed under the |
| 102 | Creative Commons - Attribution / Share Alike license. |
| 103 | |
| 104 | https://creativecommons.org/licenses/by-sa/2.5 |
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