Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2023-32665: GLib's GVariant deserialization prior to GLib 2.74.4 is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service. CVE-2023-32643: GLib's GVariant deserialization code is vulnerable to a heap buffer overflow introduced by the fix for CVE-2023-32665. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of GLib developers to backport the initial fix for CVE-2023-32665. CVE-2023-32636: GLib's GVariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of GLib developers to backport the initial fix for CVE-2023-29499 CVE-2023-32611: GLib's GVariant deserialization prior to GLib 2.74.4 is vulnerable to a slowdown issue where a crafted GVariant can cause excessive processing, leading to denial of service. CVE-2023-29499: GLib's GVariant deserialization prior to GLib 2.74.4 failed to validate the input conforms to the expected format, leading to denial of service.
Fixed packages 7
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | glib2 | 0:2.56.1-9.amzn2.0.9 |
| Amazon Linux · 2 | glib2-debuginfo | 0:2.56.1-9.amzn2.0.9 |
| Amazon Linux · 2 | glib2-devel | 0:2.56.1-9.amzn2.0.9 |
| Amazon Linux · 2 | glib2-doc | 0:2.56.1-9.amzn2.0.9 |
| Amazon Linux · 2 | glib2-fam | 0:2.56.1-9.amzn2.0.9 |
| Amazon Linux · 2 | glib2-static | 0:2.56.1-9.amzn2.0.9 |
| Amazon Linux · 2 | glib2-tests | 0:2.56.1-9.amzn2.0.9 |
Vulnerabilities 5
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Medium 5.5
Gvariant offset table entry size is not checked in is_normal()
A flaw was found in GLib. GVariant deserialization fails to validate that the input conforms to the expected format, leading to denial of service.
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Medium 5.5
G_variant_byteswap() can take a long time with some non-normal inputs
A flaw was found in GLib. GVariant deserialization is vulnerable to a slowdown issue where a crafted GVariant can cause excessive processing, leading to denial of service.
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Medium 5.5
Gvariant deserialisation does not match spec for non-normal data
A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.
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Medium 5.3
A flaw was found in GLib. The GVariant deserialization code is vulnerable to a heap buffer overflow introduced by the f…
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Medium 4.7
A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by ad…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-29499.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-32611.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-32636.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-32643.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-32665.html