diff --git a/NEWS b/NEWS index 8c1c149f91..3f0dee4fcc 100644 --- a/NEWS +++ b/NEWS @@ -75,25 +75,11 @@ Changes to build and runtime requirements: Security related changes: - CVE-2023-4527: If the system is configured in no-aaaa mode via - /etc/resolv.conf, getaddrinfo is called for the AF_UNSPEC address - family, and a DNS response is received over TCP that is larger than - 2048 bytes, getaddrinfo may potentially disclose stack contents via - the returned address data, or crash. +The following CVEs were fixed in this release, details of which can be +found in the advisories directory of the release tarball: - CVE-2023-4806: When an NSS plugin only implements the - _gethostbyname2_r and _getcanonname_r callbacks, getaddrinfo could use - memory that was freed during buffer resizing, potentially causing a - crash or read or write to arbitrary memory. - - CVE-2023-5156: The fix for CVE-2023-4806 introduced a memory leak when - an application calls getaddrinfo for AF_INET6 with AI_CANONNAME, - AI_ALL and AI_V4MAPPED flags set. - - CVE-2023-4911: If a tunable of the form NAME=NAME=VAL is passed in the - environment of a setuid program and NAME is valid, it may result in a - buffer overflow, which could be exploited to achieve escalated - privileges. This flaw was introduced in glibc 2.34. + [The release manager will add the list generated by + scripts/process-fixed-cves.sh just before the release.] The following bugs are resolved with this release: diff --git a/advisories/GLIBC-SA-2023-0001 b/advisories/GLIBC-SA-2023-0001 new file mode 100644 index 0000000000..12b4f8edb8 --- /dev/null +++ b/advisories/GLIBC-SA-2023-0001 @@ -0,0 +1,14 @@ +printf: incorrect output for integers with thousands separator and width field + +When the printf family of functions is called with a format specifier +that uses an (enable grouping) and a minimum width +specifier, the resulting output could be larger than reasonably expected +by a caller that computed a tight bound on the buffer size. The +resulting larger than expected output could result in a buffer overflow +in the printf family of functions. + +CVE-Id: CVE-2023-25139 +Public-Date: 2023-02-02 +Vulnerable-Commit: e88b9f0e5cc50cab57a299dc7efe1a4eb385161d (2.37) +Fix-Commit: c980549cc6a1c03c23cc2fe3e7b0fe626a0364b0 (2.38) +Fix-Backport: 07b9521fc6369d000216b96562ff7c0ed32a16c4 (2.37) diff --git a/advisories/GLIBC-SA-2023-0002 b/advisories/GLIBC-SA-2023-0002 new file mode 100644 index 0000000000..32e45f524f --- /dev/null +++ b/advisories/GLIBC-SA-2023-0002 @@ -0,0 +1,15 @@ +getaddrinfo: Stack read overflow in no-aaaa mode + +If the system is configured in no-aaaa mode via /etc/resolv.conf, +getaddrinfo is called for the AF_UNSPEC address family, and a DNS +response is received over TCP that is larger than 2048 bytes, +getaddrinfo may potentially disclose stack contents via the returned +address data, or crash. + +CVE-Id: CVE-2023-4527 +Public-Date: 2023-09-12 +Vulnerable-Commit: f282cdbe7f436c75864e5640a409a10485e9abb2 (2.36) +Fix-Commit: bd77dd7e73e3530203be1c52c8a29d08270cb25d (2.39) +Fix-Backport: 4ea972b7edd7e36610e8cde18bf7a8149d7bac4f (2.36) +Fix-Backport: b7529346025a130fee483d42178b5c118da971bb (2.37) +Fix-Backport: b25508dd774b617f99419bdc3cf2ace4560cd2d6 (2.38) diff --git a/advisories/GLIBC-SA-2023-0003 b/advisories/GLIBC-SA-2023-0003 new file mode 100644 index 0000000000..0950dc0792 --- /dev/null +++ b/advisories/GLIBC-SA-2023-0003 @@ -0,0 +1,15 @@ +getaddrinfo: Potential use-after-free + +When an NSS plugin only implements the _gethostbyname2_r and +_getcanonname_r callbacks, getaddrinfo could use memory that was freed +during buffer resizing, potentially causing a crash or read or write to +arbitrary memory. + +CVE-Id: CVE-2023-4806 +Public-Date: 2023-09-12 +Fix-Commit: 973fe93a5675c42798b2161c6f29c01b0e243994 (2.39) +Fix-Backport: e09ee267c03e3150c2c9ba28625ab130705a485e (2.34) +Fix-Backport: e3ccb230a961b4797510e6a1f5f21fd9021853e7 (2.35) +Fix-Backport: a9728f798ec7f05454c95637ee6581afaa9b487d (2.36) +Fix-Backport: 6529a7466c935f36e9006b854d6f4e1d4876f942 (2.37) +Fix-Backport: 00ae4f10b504bc4564e9f22f00907093f1ab9338 (2.38) diff --git a/advisories/GLIBC-SA-2023-0004 b/advisories/GLIBC-SA-2023-0004 new file mode 100644 index 0000000000..cba13db38f --- /dev/null +++ b/advisories/GLIBC-SA-2023-0004 @@ -0,0 +1,16 @@ +tunables: local privilege escalation through buffer overflow + +If a tunable of the form NAME=NAME=VAL is passed in the environment of a +setuid program and NAME is valid, it may result in a buffer overflow, +which could be exploited to achieve escalated privileges. This flaw was +introduced in glibc 2.34. + +CVE-Id: CVE-2023-4911 +Public-Date: 2023-10-03 +Vulnerable-Commit: 2ed18c5b534d9e92fc006202a5af0df6b72e7aca (2.34) +Fix-Commit: 1056e5b4c3f2d90ed2b4a55f96add28da2f4c8fa (2.39) +Fix-Backport: dcc367f148bc92e7f3778a125f7a416b093964d9 (2.34) +Fix-Backport: c84018a05aec80f5ee6f682db0da1130b0196aef (2.35) +Fix-Backport: 22955ad85186ee05834e47e665056148ca07699c (2.36) +Fix-Backport: b4e23c75aea756b4bddc4abcf27a1c6dca8b6bd3 (2.37) +Fix-Backport: 750a45a783906a19591fb8ff6b7841470f1f5701 (2.38) diff --git a/advisories/GLIBC-SA-2023-0005 b/advisories/GLIBC-SA-2023-0005 new file mode 100644 index 0000000000..a518af803a --- /dev/null +++ b/advisories/GLIBC-SA-2023-0005 @@ -0,0 +1,20 @@ +getaddrinfo: DoS due to memory leak + +The fix for CVE-2023-4806 introduced a memory leak when an application +calls getaddrinfo for AF_INET6 with AI_CANONNAME, AI_ALL and AI_V4MAPPED +flags set. + +CVE-Id: CVE-2023-5156 +Public-Date: 2023-09-25 +Vulnerable-Commit: 973fe93a5675c42798b2161c6f29c01b0e243994 (pre-2.39) +Fix-Commit: ec6b95c3303c700eb89eebeda2d7264cc184a796 (2.39) +Vulnerable-Backport: e09ee267c03e3150c2c9ba28625ab130705a485e (2.34) +Vulnerable-Backport: e3ccb230a961b4797510e6a1f5f21fd9021853e7 (2.35) +Vulnerable-Backport: a9728f798ec7f05454c95637ee6581afaa9b487d (2.36) +Vulnerable-Backport: 6529a7466c935f36e9006b854d6f4e1d4876f942 (2.37) +Vulnerable-Backport: 00ae4f10b504bc4564e9f22f00907093f1ab9338 (2.38) +Fix-Backport: 8006457ab7e1cd556b919f477348a96fe88f2e49 (2.34) +Fix-Backport: 17092c0311f954e6f3c010f73ce3a78c24ac279a (2.35) +Fix-Backport: 856bac55f98dc840e7c27cfa82262b933385de90 (2.36) +Fix-Backport: 4473d1b87d04b25cdd0e0354814eeaa421328268 (2.37) +Fix-Backport: 5ee59ca371b99984232d7584fe2b1a758b4421d3 (2.38) diff --git a/scripts/process-fixed-cves.sh b/scripts/process-fixed-cves.sh new file mode 100755 index 0000000000..7a870f57ae --- /dev/null +++ b/scripts/process-fixed-cves.sh @@ -0,0 +1,41 @@ +#!/bin/bash -e +# Copyright The GNU Toolchain Authors. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, see +# . + +if ! [ -d advisories ]; then + echo "error: Run me from the toplevel directory of the glibc repository." + exit 1 +fi + +release=$(echo RELEASE | gcc -E -include version.h -o - - | grep -v "^#") +minor=$(echo __GLIBC_MINOR__ | gcc -E -include include/features.h -o - - | + grep -v "^#") + +if [ $release = "\"development\"" ]; then + cur_rel=2.$((minor + 1)) +else + cur_rel=2.$minor +fi + +for f in $(grep -l "^Fix-Commit: .* ($cur_rel)$" advisories/*); do + echo -e " $(basename $f):" + cve_id=$(sed -n 's/CVE-Id: \(.*\)/\1/p' $f) + echo "$(head -1 $f) ($cve_id)" | fold -w 68 -s | while read line; do + echo " $line" + done + echo +done