Description
A flaw has been identified in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the nss_gethostbyname2_r and nss_getcanonname_r hooks without implementing the nss*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 debian 11 | | =2.31-13 || =2.31-13+deb11u1 || =2.31-13+deb11u10 || =2.31-13+deb11u11 || =2.31-13+deb11u12 || =2.31-13+deb11u13 || =2.31-13+deb11u2 || =2.31-13+deb11u3 || =2.31-13+deb11u4 || =2.31-13+deb11u5 || =2.31-13+deb11u6 || =2.31-13+deb11u7 || =2.31-13+deb11u8 || =2.31-13+deb11u9 || =2.31-13+hurd.1 || =2.31-13+hurd.2 || =2.31-13+hurd.3 || =2.31-13+qemu || =2.31-14 || =2.31-15 || =2.31-16 || =2.31-17 || =2.31-17~0 || =2.31-18~0 || =2.32-0experimental0 || =2.32-0experimental1 || =2.32-1 || =2.32-2 || =2.32-2+qemu || =2.32-3 || =2.32-4 || =2.32-5 || =2.33-0experimental0 || =2.33-0experimental1 || =2.33-0experimental2 || =2.33-0experimental3 || =2.33-1 || =2.33-1+qemu || =2.33-2 || =2.33-2+qemu || =2.33-2+qemu1 || =2.33-2~0 || =2.33-2~1 || =2.33-2~2 || =2.33-2~3 || =2.33-3 || =2.33-3~0 || =2.33-4 || =2.33-5 || =2.33-6 || =2.33-7 || =2.33-8 || =2.33-8~0 || =2.34-0experimental0 || =2.34-0experimental1 || =2.34-0experimental2 || =2.34-0experimental3 || =2.34-0experimental4 || =2.34-0experimental5 || =2.34-1 || =2.34-2 || =2.34-3 || =2.34-4 || =2.34-5 || =2.34-5~0 || =2.34-6 || =2.34-7 || =2.34-7+qemu || =2.34-8 || =2.34-8~0 || =2.34-9~0 || =2.35-0experimental0 || =2.35-0experimental1 || =2.35-0experimental2 || =2.35-0experimental3 || =2.35-0experimental3+qemu || =2.35-1 || =2.35-1+sparc64 || =2.35-2 || =2.35-3 || =2.35-4 || =2.36-1 || =2.36-10~0 || =2.36-2 || =2.36-3 || =2.36-4 || =2.36-4+ports || =2.36-5 || =2.36-6 || =2.36-7 || =2.36-7~0 || =2.36-7~1 || =2.36-8 || =2.36-8+alpha1 || =2.36-9 || =2.36-9+loong64 || =2.36-9~1 || =2.36-9~2 || =2.36-9~3 || =2.37-1 || =2.37-10 || =2.37-11 || =2.37-12 || =2.37-13 || =2.37-14 || =2.37-15 || =2.37-15.1 || =2.37-15.1+sh4 || =2.37-15~deb13u1 || =2.37-16 || =2.37-17 || =2.37-18 || =2.37-19 || =2.37-2 || =2.37-3 || =2.37-4 || =2.37-5 || =2.37-6 || =2.37-7 || =2.37-8 || =2.37-9 || =2.38-1 || =2.38-10 || =2.38-11 || =2.38-12 || =2.38-12.1 || =2.38-13 || =2.38-14 || =2.38-15~0 || =2.38-15~1 || =2.38-2 || =2.38-3 || =2.38-4 || =2.38-5 || =2.38-6 || =2.38-7 || =2.38-7~0+hurd.1 || =2.38-8 || =2.38-9 || =2.39-1 || =2.39-2 || =2.39-3 || =2.39-3.1 || =2.39-4 || =2.39-5 || =2.39-6 || =2.39-6+hurd.1 || =2.39-6+sh4 || =2.39-7 || =2.39-7+sh4 || =2.39-7~0 || =2.39-8~0 || =2.40-1 || =2.40-2 || =2.40-2+sh4 || =2.40-3 || =2.40-3+sh4 || =2.40-4 || =2.40-5 || =2.40-5~hurd.1 || =2.40-6 || =2.40-6~1 || =2.40-7 || =2.41-1 || =2.41-10 || =2.41-11 || =2.41-12 || =2.41-13~hurd.0 || =2.41-13~hurd.1 || =2.41-2 || =2.41-3 || =2.41-4 || =2.41-4~0 || =2.41-5 || =2.41-5~0 || =2.41-6 || =2.41-7 || =2.41-8 || =2.41-8~0 || =2.41-8~1 || =2.41-9 || =2.41-9~0 || =2.41-9~1 || =2.42-1 || =2.42-10 || =2.42-11 || =2.42-12 || =2.42-12~hurd.1 || =2.42-13 || =2.42-14 || =2.42-14~hurd.1 || =2.42-15 || =2.42-15~hurd.1 || =2.42-2 || =2.42-3 || =2.42-4 || =2.42-5 || =2.42-6 || =2.42-7 || =2.42-8 || =2.42-8~hurd.1 || =2.42-8~hurd.2 || =2.42-9 || =2.43-1 || =2.43-2 | - |
debian 12 | | =2.36-9 || =2.36-9+deb12u1 || =2.36-9+deb12u2 || >=0 <2.36-9+deb12u3 | 2.36-9+deb12u3 |
debian 13 | | | 2.37-10 |
debian 14 | | | 2.37-10 |
 rpm rhel6 | | - | - |
rpm rhel7 | | - | - |
rpm rhel6 | | - | - |
rpm rhel7 | | - | - |
rpm rhel8 | | | 0:2.28-225.el8_8.6 |
rpm rhel8.6 | | | 0:2.28-189.8.el8_6 |
